30305972976 has 20 divisors (see below), whose sum is σ = 78290430312. Its totient is φ = 10101990976.

The previous prime is 30305972891. The next prime is 30305972999. The reversal of 30305972976 is 67927950303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315687171 + ... + 315687266.

Almost surely, 2^30305972976 is an apocalyptic number.

It is an amenable number.

30305972976 is an abundant number, since it is smaller than the sum of its proper divisors (47984457336).

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

30305972976 is a wasteful number, since it uses less digits than its factorization.

30305972976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631374448 (or 631374442 counting only the distinct ones).

The product of its (nonzero) digits is 2143260, while the sum is 51.

The spelling of 30305972976 in words is "thirty billion, three hundred five million, nine hundred seventy-two thousand, nine hundred seventy-six".