31179120064 has 14 divisors (see below), whose sum is σ = 61871066504. Its totient is φ = 15589560000.

The previous prime is 31179120041. The next prime is 31179120073. The reversal of 31179120064 is 46002197113.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243586812 + ... + 243586939.

Almost surely, 2^31179120064 is an apocalyptic number.

It is an amenable number.

31179120064 is a deficient number, since it is larger than the sum of its proper divisors (30691946440).

31179120064 is an equidigital number, since it uses as much as digits as its factorization.

31179120064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487173763 (or 487173753 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The spelling of 31179120064 in words is "thirty-one billion, one hundred seventy-nine million, one hundred twenty thousand, sixty-four".