21726911295 has 12 divisors (see below), whose sum is σ = 37659979656. Its totient is φ = 11587686000.

The previous prime is 21726911281. The next prime is 21726911299. The reversal of 21726911295 is 59211962712.

It is not a de Polignac number, because 21726911295 - 2⁴ = 21726911279 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 482820251 = 21726911295 / (2 + 1 + 7 + 2 + 6 + 9 + 1 + 1 + 2 + 9 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 21726911295.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21726911299) 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 11 ways as a sum of consecutive naturals, for example, 241410081 + ... + 241410170.

It is an arithmetic number, because the mean of its divisors is an integer number (3138331638).

Almost surely, 2^21726911295 is an apocalyptic number.

21726911295 is a deficient number, since it is larger than the sum of its proper divisors (15933068361).

21726911295 is a wasteful number, since it uses less digits than its factorization.

21726911295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482820262 (or 482820259 counting only the distinct ones).

The product of its digits is 136080, while the sum is 45.

The spelling of 21726911295 in words is "twenty-one billion, seven hundred twenty-six million, nine hundred eleven thousand, two hundred ninety-five".