30856569016 has 32 divisors (see below), whose sum is σ = 71207468640. Its totient is φ = 12206994048.

The previous prime is 30856568957. The next prime is 30856569017. The reversal of 30856569016 is 61096565803.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30856569017) 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, 21191971 + ... + 21193426.

It is an arithmetic number, because the mean of its divisors is an integer number (2225233395).

Almost surely, 2^30856569016 is an apocalyptic number.

It is an amenable number.

30856569016 is an abundant number, since it is smaller than the sum of its proper divisors (40350899624).

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

30856569016 is a wasteful number, since it uses less digits than its factorization.

30856569016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42385423 (or 42385419 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 49.

The spelling of 30856569016 in words is "thirty billion, eight hundred fifty-six million, five hundred sixty-nine thousand, sixteen".