137777831019 has 12 divisors (see below), whose sum is σ = 199209673000. Its totient is φ = 91760848704.

The previous prime is 137777830951. The next prime is 137777831057. The reversal of 137777831019 is 910138777731.

It is a happy number.

It is not a de Polignac number, because 137777831019 - 2¹¹ = 137777828971 is a prime.

It is a super-2 number, since 2×137777831019² (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 (137777831099) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7576969 + ... + 7595130.

Almost surely, 2^137777831019 is an apocalyptic number.

137777831019 is a deficient number, since it is larger than the sum of its proper divisors (61431841981).

137777831019 is a wasteful number, since it uses less digits than its factorization.

137777831019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15173114 (or 15173111 counting only the distinct ones).

The product of its (nonzero) digits is 1555848, while the sum is 54.

The spelling of 137777831019 in words is "one hundred thirty-seven billion, seven hundred seventy-seven million, eight hundred thirty-one thousand, nineteen".