764163428513 has 2 divisors, whose sum is σ = 764163428514. Its totient is φ = 764163428512.

The previous prime is 764163428473. The next prime is 764163428527. The reversal of 764163428513 is 315824361467.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 571365156769 + 192798271744 = 755887^2 + 439088^2 .

It is a cyclic number.

It is not a de Polignac number, because 764163428513 - 2¹² = 764163424417 is a prime.

It is a super-2 number, since 2×764163428513² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (764163428533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382081714256 + 382081714257.

It is an arithmetic number, because the mean of its divisors is an integer number (382081714257).

Almost surely, 2^764163428513 is an apocalyptic number.

It is an amenable number.

764163428513 is a deficient number, since it is larger than the sum of its proper divisors (1).

764163428513 is an equidigital number, since it uses as much as digits as its factorization.

764163428513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 50.

The spelling of 764163428513 in words is "seven hundred sixty-four billion, one hundred sixty-three million, four hundred twenty-eight thousand, five hundred thirteen".