2639152769 has 8 divisors (see below), whose sum is σ = 2881880640. Its totient is φ = 2396892400.

The previous prime is 2639152759. The next prime is 2639152771. The reversal of 2639152769 is 9672519362.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2639152769 - 2⁸ = 2639152513 is a prime.

It is a super-2 number, since 2×2639152769² = 13930254676240734722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2639152759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105014 + ... + 127695.

It is an arithmetic number, because the mean of its divisors is an integer number (360235080).

Almost surely, 2^2639152769 is an apocalyptic number.

It is an amenable number.

2639152769 is a deficient number, since it is larger than the sum of its proper divisors (242727871).

2639152769 is a wasteful number, since it uses less digits than its factorization.

2639152769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233751.

The product of its digits is 1224720, while the sum is 50.

The square root of 2639152769 is about 51372.6850476009. The cubic root of 2639152769 is about 1381.9367835983.

The spelling of 2639152769 in words is "two billion, six hundred thirty-nine million, one hundred fifty-two thousand, seven hundred sixty-nine".