30000999957 has 16 divisors (see below), whose sum is σ = 40437038400. Its totient is φ = 19783929600.

The previous prime is 30000999953. The next prime is 30000999971. The reversal of 30000999957 is 75999900003.

It is not a de Polignac number, because 30000999957 - 2² = 30000999953 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30000999953) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31519 + ... + 246972.

It is an arithmetic number, because the mean of its divisors is an integer number (2527314900).

Almost surely, 2^30000999957 is an apocalyptic number.

It is an amenable number.

30000999957 is a deficient number, since it is larger than the sum of its proper divisors (10436038443).

30000999957 is a wasteful number, since it uses less digits than its factorization.

30000999957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278884.

The product of its (nonzero) digits is 688905, while the sum is 51.

The spelling of 30000999957 in words is "thirty billion, nine hundred ninety-nine thousand, nine hundred fifty-seven".