30612816956 has 24 divisors (see below), whose sum is σ = 54350152416. Its totient is φ = 15084386240.

The previous prime is 30612816931. The next prime is 30612816977. The reversal of 30612816956 is 65961821603.

It is a happy number.

It is a super-2 number, since 2×30612816956² (a number of 22 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 30612816956.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 681710 + ... + 725226.

It is an arithmetic number, because the mean of its divisors is an integer number (2264589684).

Almost surely, 2^30612816956 is an apocalyptic number.

It is an amenable number.

30612816956 is a deficient number, since it is larger than the sum of its proper divisors (23737335460).

30612816956 is a wasteful number, since it uses less digits than its factorization.

30612816956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46069 (or 46067 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 47.

The spelling of 30612816956 in words is "thirty billion, six hundred twelve million, eight hundred sixteen thousand, nine hundred fifty-six".