30836639168 has 28 divisors (see below), whose sum is σ = 61200715800. Its totient is φ = 15415986432.

The previous prime is 30836639147. The next prime is 30836639173. The reversal of 30836639168 is 86193663803.

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, 437555 + ... + 503117.

It is an arithmetic number, because the mean of its divisors is an integer number (2185739850).

Almost surely, 2^30836639168 is an apocalyptic number.

It is an amenable number.

30836639168 is a deficient number, since it is larger than the sum of its proper divisors (30364076632).

30836639168 is an equidigital number, since it uses as much as digits as its factorization.

30836639168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72924 (or 72914 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 53.

The spelling of 30836639168 in words is "thirty billion, eight hundred thirty-six million, six hundred thirty-nine thousand, one hundred sixty-eight".