26584768979 has 4 divisors (see below), whose sum is σ = 26678708376. Its totient is φ = 26490829584.

The previous prime is 26584768957. The next prime is 26584769047. The reversal of 26584768979 is 97986748562.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26584768979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26584768919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46969274 + ... + 46969839.

It is an arithmetic number, because the mean of its divisors is an integer number (6669677094).

Almost surely, 2^26584768979 is an apocalyptic number.

26584768979 is a deficient number, since it is larger than the sum of its proper divisors (93939397).

26584768979 is an equidigital number, since it uses as much as digits as its factorization.

26584768979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93939396.

The product of its digits is 365783040, while the sum is 71.

The spelling of 26584768979 in words is "twenty-six billion, five hundred eighty-four million, seven hundred sixty-eight thousand, nine hundred seventy-nine".