2638077939 has 24 divisors (see below), whose sum is σ = 4373963360. Its totient is φ = 1500882048.

The previous prime is 2638077913. The next prime is 2638077941. The reversal of 2638077939 is 9397708362.

It is not a de Polignac number, because 2638077939 - 2⁷ = 2638077811 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2638076939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77002 + ... + 105855.

Almost surely, 2^2638077939 is an apocalyptic number.

2638077939 is a deficient number, since it is larger than the sum of its proper divisors (1735885421).

2638077939 is a wasteful number, since it uses less digits than its factorization.

2638077939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183099 (or 183096 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 54.

The square root of 2638077939 is about 51362.2228782984. Note that the first 3 decimals coincide. The cubic root of 2638077939 is about 1381.7491540910.

The spelling of 2638077939 in words is "two billion, six hundred thirty-eight million, seventy-seven thousand, nine hundred thirty-nine".