1264514496769 has 2 divisors, whose sum is σ = 1264514496770. Its totient is φ = 1264514496768.

The previous prime is 1264514496757. The next prime is 1264514496809. The reversal of 1264514496769 is 9676944154621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1144183212225 + 120331284544 = 1069665^2 + 346888^2 .

It is a cyclic number.

It is not a de Polignac number, because 1264514496769 - 2⁵ = 1264514496737 is a prime.

It is a super-2 number, since 2×1264514496769² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1264514496769.

It is not a weakly prime, because it can be changed into another prime (1264514496709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632257248384 + 632257248385.

It is an arithmetic number, because the mean of its divisors is an integer number (632257248385).

Almost surely, 2^{1264514496769} is an apocalyptic number.

It is an amenable number.

1264514496769 is a deficient number, since it is larger than the sum of its proper divisors (1).

1264514496769 is an equidigital number, since it uses as much as digits as its factorization.

1264514496769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 78382080, while the sum is 64.

The spelling of 1264514496769 in words is "one trillion, two hundred sixty-four billion, five hundred fourteen million, four hundred ninety-six thousand, seven hundred sixty-nine".