2538744065 has 16 divisors (see below), whose sum is σ = 3579097536. Its totient is φ = 1704331200.

The previous prime is 2538744059. The next prime is 2538744073. The reversal of 2538744065 is 5604478352.

It is not a de Polignac number, because 2538744065 - 2⁴ = 2538744049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1774631 + ... + 1776060.

It is an arithmetic number, because the mean of its divisors is an integer number (223693596).

Almost surely, 2^2538744065 is an apocalyptic number.

It is an amenable number.

2538744065 is a deficient number, since it is larger than the sum of its proper divisors (1040353471).

2538744065 is a wasteful number, since it uses less digits than its factorization.

2538744065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3550720.

The product of its (nonzero) digits is 806400, while the sum is 44.

The square root of 2538744065 is about 50385.9510677332. The cubic root of 2538744065 is about 1364.1840696155.

The spelling of 2538744065 in words is "two billion, five hundred thirty-eight million, seven hundred forty-four thousand, sixty-five".