26570968791 has 4 divisors (see below), whose sum is σ = 35427958392. Its totient is φ = 17713979192.

The previous prime is 26570968789. The next prime is 26570968843. The reversal of 26570968791 is 19786907562.

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 26570968791 - 2¹ = 26570968789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26570968751) 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, 4428494796 + ... + 4428494801.

It is an arithmetic number, because the mean of its divisors is an integer number (8856989598).

Almost surely, 2^26570968791 is an apocalyptic number.

26570968791 is a deficient number, since it is larger than the sum of its proper divisors (8856989601).

26570968791 is an equidigital number, since it uses as much as digits as its factorization.

26570968791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8856989600.

The product of its (nonzero) digits is 11430720, while the sum is 60.

The spelling of 26570968791 in words is "twenty-six billion, five hundred seventy million, nine hundred sixty-eight thousand, seven hundred ninety-one".