30641865875 has 16 divisors (see below), whose sum is σ = 38252435520. Its totient is φ = 24506193600.

The previous prime is 30641865857. The next prime is 30641865887. The reversal of 30641865875 is 57856814603.

It is not a de Polignac number, because 30641865875 - 2¹² = 30641861779 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 406394 + ... + 475856.

It is an arithmetic number, because the mean of its divisors is an integer number (2390777220).

Almost surely, 2^30641865875 is an apocalyptic number.

30641865875 is a deficient number, since it is larger than the sum of its proper divisors (7610569645).

30641865875 is an equidigital number, since it uses as much as digits as its factorization.

30641865875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73007 (or 72997 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 53.

The spelling of 30641865875 in words is "thirty billion, six hundred forty-one million, eight hundred sixty-five thousand, eight hundred seventy-five".