26117328279 has 32 divisors (see below), whose sum is σ = 40889802240. Its totient is φ = 14519918592.

The previous prime is 26117328271. The next prime is 26117328301. The reversal of 26117328279 is 97282371162.

It is a happy number.

It is not a de Polignac number, because 26117328279 - 2³ = 26117328271 is a prime.

It is a super-2 number, since 2×26117328279² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26117328271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11527 + ... + 228839.

It is an arithmetic number, because the mean of its divisors is an integer number (1277806320).

Almost surely, 2^26117328279 is an apocalyptic number.

26117328279 is a deficient number, since it is larger than the sum of its proper divisors (14772473961).

26117328279 is a wasteful number, since it uses less digits than its factorization.

26117328279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217479.

The product of its digits is 508032, while the sum is 48.

The spelling of 26117328279 in words is "twenty-six billion, one hundred seventeen million, three hundred twenty-eight thousand, two hundred seventy-nine".