12764748569 has 2 divisors, whose sum is σ = 12764748570. Its totient is φ = 12764748568.

The previous prime is 12764748551. The next prime is 12764748641. The reversal of 12764748569 is 96584746721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9942482944 + 2822265625 = 99712^2 + 53125^2 .

It is a cyclic number.

It is not a de Polignac number, because 12764748569 - 2²⁸ = 12496313113 is a prime.

It is a super-2 number, since 2×12764748569² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12764148569) 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 as a sum of consecutive naturals, namely, 6382374284 + 6382374285.

It is an arithmetic number, because the mean of its divisors is an integer number (6382374285).

Almost surely, 2^12764748569 is an apocalyptic number.

It is an amenable number.

12764748569 is a deficient number, since it is larger than the sum of its proper divisors (1).

12764748569 is an equidigital number, since it uses as much as digits as its factorization.

12764748569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20321280, while the sum is 59.

The spelling of 12764748569 in words is "twelve billion, seven hundred sixty-four million, seven hundred forty-eight thousand, five hundred sixty-nine".