764733337481 has 2 divisors, whose sum is σ = 764733337482. Its totient is φ = 764733337480.

The previous prime is 764733337463. The next prime is 764733337547. The reversal of 764733337481 is 184733337467.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 609166201081 + 155567136400 = 780491^2 + 394420^2 .

It is a cyclic number.

It is not a de Polignac number, because 764733337481 - 2²⁶ = 764666228617 is a prime.

It is a super-2 number, since 2×764733337481² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (764733337411) 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, 382366668740 + 382366668741.

It is an arithmetic number, because the mean of its divisors is an integer number (382366668741).

Almost surely, 2^764733337481 is an apocalyptic number.

It is an amenable number.

764733337481 is a deficient number, since it is larger than the sum of its proper divisors (1).

764733337481 is an equidigital number, since it uses as much as digits as its factorization.

764733337481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21337344, while the sum is 56.

The spelling of 764733337481 in words is "seven hundred sixty-four billion, seven hundred thirty-three million, three hundred thirty-seven thousand, four hundred eighty-one".