30857697936 has 120 divisors (see below), whose sum is σ = 93189410496. Its totient is φ = 9475511040.

The previous prime is 30857697901. The next prime is 30857697967. The reversal of 30857697936 is 63979675803.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 925231 + ... + 958001.

Almost surely, 2^30857697936 is an apocalyptic number.

30857697936 is a gapful number since it is divisible by the number (36) 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 30857697936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46594705248).

30857697936 is an abundant number, since it is smaller than the sum of its proper divisors (62331712560).

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

30857697936 is a wasteful number, since it uses less digits than its factorization.

30857697936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33301 (or 33292 counting only the distinct ones).

The product of its (nonzero) digits is 51438240, while the sum is 63.

The spelling of 30857697936 in words is "thirty billion, eight hundred fifty-seven million, six hundred ninety-seven thousand, nine hundred thirty-six".