131813064368 has 40 divisors (see below), whose sum is σ = 259050867600. Its totient is φ = 64962376704.

The previous prime is 131813064307. The next prime is 131813064389. The reversal of 131813064368 is 863460318131.

It is a super-2 number, since 2×131813064368² (a number of 23 digits) contains 22 as substring.

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, 1844243 + ... + 1914381.

It is an arithmetic number, because the mean of its divisors is an integer number (6476271690).

Almost surely, 2^131813064368 is an apocalyptic number.

It is an amenable number.

131813064368 is a deficient number, since it is larger than the sum of its proper divisors (127237803232).

131813064368 is a wasteful number, since it uses less digits than its factorization.

131813064368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71829 (or 71823 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 44.

The spelling of 131813064368 in words is "one hundred thirty-one billion, eight hundred thirteen million, sixty-four thousand, three hundred sixty-eight".