2639075965 has 16 divisors (see below), whose sum is σ = 3366587520. Its totient is φ = 1980331200.

The previous prime is 2639075941. The next prime is 2639076007. The reversal of 2639075965 is 5695709362.

It is not a de Polignac number, because 2639075965 - 2⁷ = 2639075837 is a prime.

It is a congruent 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, 127929 + ... + 147118.

It is an arithmetic number, because the mean of its divisors is an integer number (210411720).

Almost surely, 2^2639075965 is an apocalyptic number.

It is an amenable number.

2639075965 is a deficient number, since it is larger than the sum of its proper divisors (727511555).

2639075965 is a wasteful number, since it uses less digits than its factorization.

2639075965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275172.

The product of its (nonzero) digits is 3061800, while the sum is 52.

The square root of 2639075965 is about 51371.9375242943. The cubic root of 2639075965 is about 1381.9233778690.

The spelling of 2639075965 in words is "two billion, six hundred thirty-nine million, seventy-five thousand, nine hundred sixty-five".