38137799277 has 24 divisors (see below), whose sum is σ = 55257495800. Its totient is φ = 25347022848.

The previous prime is 38137799261. The next prime is 38137799279. The reversal of 38137799277 is 77299773183.

38137799277 is a `hidden beast` number, since 381 + 37 + 79 + 92 + 77 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 15219169956 + 22918629321 = 123366^2 + 151389^2 .

It is not a de Polignac number, because 38137799277 - 2⁴ = 38137799261 is a prime.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38137799279) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9896283 + ... + 9900135.

Almost surely, 2^38137799277 is an apocalyptic number.

It is an amenable number.

38137799277 is a deficient number, since it is larger than the sum of its proper divisors (17119696523).

38137799277 is a wasteful number, since it uses less digits than its factorization.

38137799277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6957 (or 6954 counting only the distinct ones).

The product of its digits is 28005264, while the sum is 63.

The spelling of 38137799277 in words is "thirty-eight billion, one hundred thirty-seven million, seven hundred ninety-nine thousand, two hundred seventy-seven".