137316386681 has 8 divisors (see below), whose sum is σ = 138011739744. Its totient is φ = 136621827360.

The previous prime is 137316386677. The next prime is 137316386699. The reversal of 137316386681 is 186683613731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 137316386681 - 2² = 137316386677 is a prime.

It is a super-2 number, since 2×137316386681² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137316386621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149981 + ... + 545093.

It is an arithmetic number, because the mean of its divisors is an integer number (17251467468).

Almost surely, 2^137316386681 is an apocalyptic number.

It is an amenable number.

137316386681 is a deficient number, since it is larger than the sum of its proper divisors (695353063).

137316386681 is a wasteful number, since it uses less digits than its factorization.

137316386681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396871.

The product of its digits is 2612736, while the sum is 53.

The spelling of 137316386681 in words is "one hundred thirty-seven billion, three hundred sixteen million, three hundred eighty-six thousand, six hundred eighty-one".