764568364897 has 2 divisors, whose sum is σ = 764568364898. Its totient is φ = 764568364896.

The previous prime is 764568364801. The next prime is 764568364939. The reversal of 764568364897 is 798463865467.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 764568364816 + 81 = 874396^2 + 9^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-764568364897 is a prime.

It is not a weakly prime, because it can be changed into another prime (764568364597) 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, 382284182448 + 382284182449.

It is an arithmetic number, because the mean of its divisors is an integer number (382284182449).

Almost surely, 2^764568364897 is an apocalyptic number.

It is an amenable number.

764568364897 is a deficient number, since it is larger than the sum of its proper divisors (1).

764568364897 is an equidigital number, since it uses as much as digits as its factorization.

764568364897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1463132160, while the sum is 73.

The spelling of 764568364897 in words is "seven hundred sixty-four billion, five hundred sixty-eight million, three hundred sixty-four thousand, eight hundred ninety-seven".