26217564023 has 6 divisors (see below), whose sum is σ = 30497982696. Its totient is φ = 22472197692.

The previous prime is 26217563971. The next prime is 26217564053. The reversal of 26217564023 is 32046571262.

It is not a de Polignac number, because 26217564023 - 2⁶ = 26217563959 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 (26217564053) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 267526115 + ... + 267526212.

It is an arithmetic number, because the mean of its divisors is an integer number (5082997116).

Almost surely, 2^26217564023 is an apocalyptic number.

26217564023 is a deficient number, since it is larger than the sum of its proper divisors (4280418673).

26217564023 is an equidigital number, since it uses as much as digits as its factorization.

26217564023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535052341 (or 535052334 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 38.

The spelling of 26217564023 in words is "twenty-six billion, two hundred seventeen million, five hundred sixty-four thousand, twenty-three".