2638725023 has 16 divisors (see below), whose sum is σ = 3050714016. Its totient is φ = 2255677440.

The previous prime is 2638724999. The next prime is 2638725029. The reversal of 2638725023 is 3205278362.

It is a cyclic number.

It is not a de Polignac number, because 2638725023 - 2²² = 2634530719 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 (2638725029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221015 + ... + 232647.

It is an arithmetic number, because the mean of its divisors is an integer number (190669626).

Almost surely, 2^2638725023 is an apocalyptic number.

2638725023 is a deficient number, since it is larger than the sum of its proper divisors (411988993).

2638725023 is a wasteful number, since it uses less digits than its factorization.

2638725023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12874.

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 2638725023 is about 51368.5217132049. The cubic root of 2638725023 is about 1381.8621195019.

The spelling of 2638725023 in words is "two billion, six hundred thirty-eight million, seven hundred twenty-five thousand, twenty-three".