30938772508 has 24 divisors (see below), whose sum is σ = 62801094272. Its totient is φ = 13061570544.

The previous prime is 30938772479. The next prime is 30938772533. The reversal of 30938772508 is 80527783903.

It is a super-2 number, since 2×30938772508² (a number of 22 digits) contains 22 as substring.

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, 8244066 + ... + 8247817.

Almost surely, 2^30938772508 is an apocalyptic number.

It is an amenable number.

30938772508 is an abundant number, since it is smaller than the sum of its proper divisors (31862321764).

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

30938772508 is a wasteful number, since it uses less digits than its factorization.

30938772508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16491961 (or 16491959 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 30938772508 in words is "thirty billion, nine hundred thirty-eight million, seven hundred seventy-two thousand, five hundred eight".