2690915839 has 4 divisors (see below), whose sum is σ = 2849205024. Its totient is φ = 2532626656.

The previous prime is 2690915807. The next prime is 2690915861. The reversal of 2690915839 is 9385190962.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2690915839 - 2⁵ = 2690915807 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 (2690915879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79144567 + ... + 79144600.

It is an arithmetic number, because the mean of its divisors is an integer number (712301256).

Almost surely, 2^2690915839 is an apocalyptic number.

2690915839 is a deficient number, since it is larger than the sum of its proper divisors (158289185).

2690915839 is a wasteful number, since it uses less digits than its factorization.

2690915839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158289184.

The product of its (nonzero) digits is 1049760, while the sum is 52.

The square root of 2690915839 is about 51874.0381983127. The cubic root of 2690915839 is about 1390.9132309399.

The spelling of 2690915839 in words is "two billion, six hundred ninety million, nine hundred fifteen thousand, eight hundred thirty-nine".