764837204513 has 2 divisors, whose sum is σ = 764837204514. Its totient is φ = 764837204512.

The previous prime is 764837204459. The next prime is 764837204531. The reversal of 764837204513 is 315402738467.

Together with next prime (764837204531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 743142271249 + 21694933264 = 862057^2 + 147292^2 .

It is an emirp because it is prime and its reverse (315402738467) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 764837204513 - 2²⁸ = 764568769057 is a prime.

It is not a weakly prime, because it can be changed into another prime (764837203513) 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 as a sum of consecutive naturals, namely, 382418602256 + 382418602257.

It is an arithmetic number, because the mean of its divisors is an integer number (382418602257).

Almost surely, 2^764837204513 is an apocalyptic number.

It is an amenable number.

764837204513 is a deficient number, since it is larger than the sum of its proper divisors (1).

764837204513 is an equidigital number, since it uses as much as digits as its factorization.

764837204513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3386880, while the sum is 50.

The spelling of 764837204513 in words is "seven hundred sixty-four billion, eight hundred thirty-seven million, two hundred four thousand, five hundred thirteen".