22756431513 has 4 divisors (see below), whose sum is σ = 30341908688. Its totient is φ = 15170954340.

The previous prime is 22756431469. The next prime is 22756431517. The reversal of 22756431513 is 31513465722.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 22756431513 - 2¹² = 22756427417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22756431517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3792738583 + ... + 3792738588.

It is an arithmetic number, because the mean of its divisors is an integer number (7585477172).

Almost surely, 2^22756431513 is an apocalyptic number.

It is an amenable number.

22756431513 is a deficient number, since it is larger than the sum of its proper divisors (7585477175).

22756431513 is an equidigital number, since it uses as much as digits as its factorization.

22756431513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7585477174.

The product of its digits is 151200, while the sum is 39.

The spelling of 22756431513 in words is "twenty-two billion, seven hundred fifty-six million, four hundred thirty-one thousand, five hundred thirteen".