31193986204 has 6 divisors (see below), whose sum is σ = 54589475864. Its totient is φ = 15596993100.

The previous prime is 31193986183. The next prime is 31193986217. The reversal of 31193986204 is 40268939113.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3899248272 + ... + 3899248279.

Almost surely, 2^31193986204 is an apocalyptic number.

It is an amenable number.

31193986204 is a deficient number, since it is larger than the sum of its proper divisors (23395489660).

31193986204 is a wasteful number, since it uses less digits than its factorization.

31193986204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7798496555 (or 7798496553 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 46.

The spelling of 31193986204 in words is "thirty-one billion, one hundred ninety-three million, nine hundred eighty-six thousand, two hundred four".