30939072700 has 18 divisors (see below), whose sum is σ = 67137787976. Its totient is φ = 12375629040.

The previous prime is 30939072653. The next prime is 30939072707. The reversal of 30939072700 is 727093903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30939072707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 154695264 + ... + 154695463.

Almost surely, 2^30939072700 is an apocalyptic number.

It is an amenable number.

30939072700 is an abundant number, since it is smaller than the sum of its proper divisors (36198715276).

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

30939072700 is a wasteful number, since it uses less digits than its factorization.

30939072700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309390741 (or 309390734 counting only the distinct ones).

The product of its (nonzero) digits is 71442, while the sum is 40.

The spelling of 30939072700 in words is "thirty billion, nine hundred thirty-nine million, seventy-two thousand, seven hundred".