30863639172 has 24 divisors (see below), whose sum is σ = 72065593600. Its totient is φ = 10280674656.

The previous prime is 30863639161. The next prime is 30863639189. The reversal of 30863639172 is 27193636803.

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, 882772 + ... + 917067.

Almost surely, 2^30863639172 is an apocalyptic number.

It is an amenable number.

30863639172 is an abundant number, since it is smaller than the sum of its proper divisors (41201954428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30863639172 is a wasteful number, since it uses less digits than its factorization.

30863639172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801275 (or 1801273 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 48.

The spelling of 30863639172 in words is "thirty billion, eight hundred sixty-three million, six hundred thirty-nine thousand, one hundred seventy-two".