30508313868 has 18 divisors (see below), whose sum is σ = 77118237924. Its totient is φ = 10169437944.

The previous prime is 30508313791. The next prime is 30508313879. The reversal of 30508313868 is 86831380503.

30508313868 is a `hidden beast` number, since 3 + 0 + 508 + 3 + 138 + 6 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×30508313868² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 423726546 + ... + 423726617.

Almost surely, 2^30508313868 is an apocalyptic number.

It is an amenable number.

30508313868 is an abundant number, since it is smaller than the sum of its proper divisors (46609924056).

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

30508313868 is a wasteful number, since it uses less digits than its factorization.

30508313868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847453173 (or 847453168 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 30508313868 in words is "thirty billion, five hundred eight million, three hundred thirteen thousand, eight hundred sixty-eight".