247875393795480 has 384 divisors, whose sum is σ = 898013010585600. Its totient is φ = 58780787788800.

The previous prime is 247875393795473. The next prime is 247875393795487. The reversal of 247875393795480 is 84597393578742.

247875393795480 is a `hidden beast` number, since 2 + 4 + 7 + 8 + 7 + 5 + 39 + 37 + 9 + 548 + 0 = 666.

It is a Cunningham number, because it is equal to 15744059²-1.

It is an interprime number because it is at equal distance from previous prime (247875393795473) and next prime (247875393795487).

It is a super-2 number, since 2×247875393795480² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 247875393795480.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247875393795487) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 346011501 + ... + 346727139.

It is an arithmetic number, because the mean of its divisors is an integer number (2338575548400).

Almost surely, 2^{247875393795480} is an apocalyptic number.

247875393795480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 247875393795480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (449006505292800).

247875393795480 is an abundant number, since it is smaller than the sum of its proper divisors (650137616790120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

247875393795480 is a wasteful number, since it uses less digits than its factorization.

247875393795480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717575 (or 717568 counting only the distinct ones).

The product of its (nonzero) digits is 12802406400, while the sum is 81.

The spelling of 247875393795480 in words is "two hundred forty-seven trillion, eight hundred seventy-five billion, three hundred ninety-three million, seven hundred ninety-five thousand, four hundred eighty".