26797218863 has 4 divisors (see below), whose sum is σ = 26798015328. Its totient is φ = 26796422400.

The previous prime is 26797218853. The next prime is 26797218919. The reversal of 26797218863 is 36881279762.

It is a happy number.

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 26797218863 - 2⁸ = 26797218607 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 (26797218853) 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, 345431 + ... + 415832.

It is an arithmetic number, because the mean of its divisors is an integer number (6699503832).

Almost surely, 2^26797218863 is an apocalyptic number.

26797218863 is a deficient number, since it is larger than the sum of its proper divisors (796465).

26797218863 is an equidigital number, since it uses as much as digits as its factorization.

26797218863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796464.

The product of its digits is 12192768, while the sum is 59.

The spelling of 26797218863 in words is "twenty-six billion, seven hundred ninety-seven million, two hundred eighteen thousand, eight hundred sixty-three".