137951728727 has 8 divisors (see below), whose sum is σ = 148913411040. Its totient is φ = 127403694880.

The previous prime is 137951728703. The next prime is 137951728729. The reversal of 137951728727 is 727827159731.

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 137951728727 - 2²⁸ = 137683293271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137951728729) 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, 103411424 + ... + 103412757.

It is an arithmetic number, because the mean of its divisors is an integer number (18614176380).

Almost surely, 2^137951728727 is an apocalyptic number.

137951728727 is a deficient number, since it is larger than the sum of its proper divisors (10961682313).

137951728727 is a wasteful number, since it uses less digits than its factorization.

137951728727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206824233.

The product of its digits is 10372320, while the sum is 59.

The spelling of 137951728727 in words is "one hundred thirty-seven billion, nine hundred fifty-one million, seven hundred twenty-eight thousand, seven hundred twenty-seven".