30931144646 has 16 divisors (see below), whose sum is σ = 46504523520. Its totient is φ = 15429667200.

The previous prime is 30931144637. The next prime is 30931144663. The reversal of 30931144646 is 64644113903.

It is a super-2 number, since 2×30931144646² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 2488046 + ... + 2500446.

It is an arithmetic number, because the mean of its divisors is an integer number (2906532720).

Almost surely, 2^30931144646 is an apocalyptic number.

30931144646 is a deficient number, since it is larger than the sum of its proper divisors (15573378874).

30931144646 is a wasteful number, since it uses less digits than its factorization.

30931144646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15199.

The product of its (nonzero) digits is 186624, while the sum is 41.

The spelling of 30931144646 in words is "thirty billion, nine hundred thirty-one million, one hundred forty-four thousand, six hundred forty-six".