30994887832 has 64 divisors (see below), whose sum is σ = 61970832000. Its totient is φ = 14482599936.

The previous prime is 30994887829. The next prime is 30994887839. The reversal of 30994887832 is 23878849903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30994887839) 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, 19262644 + ... + 19264252.

It is an arithmetic number, because the mean of its divisors is an integer number (968294250).

Almost surely, 2^30994887832 is an apocalyptic number.

It is an amenable number.

30994887832 is a deficient number, since it is larger than the sum of its proper divisors (30975944168).

30994887832 is a wasteful number, since it uses less digits than its factorization.

30994887832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2548 (or 2544 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 61.

The spelling of 30994887832 in words is "thirty billion, nine hundred ninety-four million, eight hundred eighty-seven thousand, eight hundred thirty-two".