26158979539 has 32 divisors (see below), whose sum is σ = 33528125952. Its totient is φ = 19813248000.

The previous prime is 26158979507. The next prime is 26158979549. The reversal of 26158979539 is 93597985162.

It is not a de Polignac number, because 26158979539 - 2⁵ = 26158979507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26158979549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3332259 + ... + 3340099.

It is an arithmetic number, because the mean of its divisors is an integer number (1047753936).

Almost surely, 2^26158979539 is an apocalyptic number.

26158979539 is a deficient number, since it is larger than the sum of its proper divisors (7369146413).

26158979539 is a wasteful number, since it uses less digits than its factorization.

26158979539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9067.

The product of its digits is 36741600, while the sum is 64.

The spelling of 26158979539 in words is "twenty-six billion, one hundred fifty-eight million, nine hundred seventy-nine thousand, five hundred thirty-nine".