247678442880 has 512 divisors, whose sum is σ = 914245747200. Its totient is φ = 56871936000.

The previous prime is 247678442867. The next prime is 247678442903. The reversal of 247678442880 is 88244876742.

It is a super-2 number, since 2×247678442880² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 48552330 + ... + 48557430.

It is an arithmetic number, because the mean of its divisors is an integer number (1785636225).

Almost surely, 2^247678442880 is an apocalyptic number.

247678442880 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 247678442880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (457122873600).

247678442880 is an abundant number, since it is smaller than the sum of its proper divisors (666567304320).

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

247678442880 is a wasteful number, since it uses less digits than its factorization.

247678442880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5175 (or 5141 counting only the distinct ones).

The product of its (nonzero) digits is 38535168, while the sum is 60.

The spelling of 247678442880 in words is "two hundred forty-seven billion, six hundred seventy-eight million, four hundred forty-two thousand, eight hundred eighty".