247012457472 has 880 divisors, whose sum is σ = 856006272000. Its totient is φ = 70217072640.

The previous prime is 247012457467. The next prime is 247012457533. The reversal of 247012457472 is 274754210742.

247012457472 is a `hidden beast` number, since 2 + 4 + 7 + 0 + 1 + 2 + 4 + 574 + 72 = 666.

It is a super-2 number, since 2×247012457472² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1657801654 + ... + 1657801802.

It is an arithmetic number, because the mean of its divisors is an integer number (972734400).

Almost surely, 2^247012457472 is an apocalyptic number.

247012457472 is a gapful number since it is divisible by the number (22) 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 247012457472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (428003136000).

247012457472 is an abundant number, since it is smaller than the sum of its proper divisors (608993814528).

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

247012457472 is a wasteful number, since it uses less digits than its factorization.

247012457472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 878080, while the sum is 45.

The spelling of 247012457472 in words is "two hundred forty-seven billion, twelve million, four hundred fifty-seven thousand, four hundred seventy-two".