30731505194 has 24 divisors (see below), whose sum is σ = 50661017280. Its totient is φ = 13972063248.

The previous prime is 30731505173. The next prime is 30731505227. The reversal of 30731505194 is 49150513703.

It is a super-2 number, since 2×30731505194² (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 11 ways as a sum of consecutive naturals, for example, 655874 + ... + 701165.

It is an arithmetic number, because the mean of its divisors is an integer number (2110875720).

Almost surely, 2^30731505194 is an apocalyptic number.

30731505194 is a deficient number, since it is larger than the sum of its proper divisors (19929512086).

30731505194 is a wasteful number, since it uses less digits than its factorization.

30731505194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357134 (or 1357121 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 38.

The spelling of 30731505194 in words is "thirty billion, seven hundred thirty-one million, five hundred five thousand, one hundred ninety-four".