30872569056 has 48 divisors (see below), whose sum is σ = 92617709184. Its totient is φ = 8820733824.

The previous prime is 30872569051. The next prime is 30872569073. The reversal of 30872569056 is 65096527803.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×30872569056² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30872569051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22969990 + ... + 22971333.

It is an arithmetic number, because the mean of its divisors is an integer number (1929535608).

Almost surely, 2^30872569056 is an apocalyptic number.

It is an amenable number.

30872569056 is an abundant number, since it is smaller than the sum of its proper divisors (61745140128).

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

30872569056 is a wasteful number, since it uses less digits than its factorization.

30872569056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45941343 (or 45941335 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 51.

The spelling of 30872569056 in words is "thirty billion, eight hundred seventy-two million, five hundred sixty-nine thousand, fifty-six".