30891041072 has 40 divisors (see below), whose sum is σ = 61314315216. Its totient is φ = 15068825856.

The previous prime is 30891041057. The next prime is 30891041143. The reversal of 30891041072 is 27014019803.

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, 577778 + ... + 628974.

Almost surely, 2^30891041072 is an apocalyptic number.

It is an amenable number.

30891041072 is a deficient number, since it is larger than the sum of its proper divisors (30423274144).

30891041072 is a wasteful number, since it uses less digits than its factorization.

30891041072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52125 (or 52119 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The spelling of 30891041072 in words is "thirty billion, eight hundred ninety-one million, forty-one thousand, seventy-two".