30889494656 has 16 divisors (see below), whose sum is σ = 61537665390. Its totient is φ = 15444747264.

The previous prime is 30889494637. The next prime is 30889494737. The reversal of 30889494656 is 65649498803.

It can be written as a sum of positive squares in only one way, i.e., 19998485056 + 10891009600 = 141416^2 + 104360^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120661961 + ... + 120662216.

Almost surely, 2^30889494656 is an apocalyptic number.

It is an amenable number.

30889494656 is a deficient number, since it is larger than the sum of its proper divisors (30648170734).

30889494656 is an equidigital number, since it uses as much as digits as its factorization.

30889494656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241324191 (or 241324179 counting only the distinct ones).

The product of its (nonzero) digits is 44789760, while the sum is 62.

The spelling of 30889494656 in words is "thirty billion, eight hundred eighty-nine million, four hundred ninety-four thousand, six hundred fifty-six".