137087947657 has 8 divisors (see below), whose sum is σ = 147318392736. Its totient is φ = 127098219072.

The previous prime is 137087947649. The next prime is 137087947669. The reversal of 137087947657 is 756749780731.

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 137087947657 - 2³ = 137087947649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137087947757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60177943 + ... + 60180220.

It is an arithmetic number, because the mean of its divisors is an integer number (18414799092).

Almost surely, 2^137087947657 is an apocalyptic number.

137087947657 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

137087947657 is a deficient number, since it is larger than the sum of its proper divisors (10230445079).

137087947657 is a wasteful number, since it uses less digits than its factorization.

137087947657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120358247.

The product of its (nonzero) digits is 62233920, while the sum is 64.

The spelling of 137087947657 in words is "one hundred thirty-seven billion, eighty-seven million, nine hundred forty-seven thousand, six hundred fifty-seven".