137691107739 has 44 divisors (see below), whose sum is σ = 210934119456. Its totient is φ = 89839195632.

The previous prime is 137691107731. The next prime is 137691107821. The reversal of 137691107739 is 937701196731.

It is not a de Polignac number, because 137691107739 - 2³ = 137691107731 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137691107731) by changing a digit.

It is a polite number, since it can be written in 43 ways as a sum of consecutive naturals, for example, 2750497 + ... + 2800109.

Almost surely, 2^137691107739 is an apocalyptic number.

137691107739 is a deficient number, since it is larger than the sum of its proper divisors (73243011717).

137691107739 is an frugal number, since it uses more digits than its factorization.

137691107739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49690 (or 49663 counting only the distinct ones).

The product of its (nonzero) digits is 1500282, while the sum is 54.

The spelling of 137691107739 in words is "one hundred thirty-seven billion, six hundred ninety-one million, one hundred seven thousand, seven hundred thirty-nine".