764647062533 has 2 divisors, whose sum is σ = 764647062534. Its totient is φ = 764647062532.

The previous prime is 764647062433. The next prime is 764647062577. The reversal of 764647062533 is 335260746467.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 750619502689 + 14027559844 = 866383^2 + 118438^2 .

It is an emirp because it is prime and its reverse (335260746467) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-764647062533 is a prime.

It is a super-3 number, since 3×764647062533³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (764647062593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382323531266 + 382323531267.

It is an arithmetic number, because the mean of its divisors is an integer number (382323531267).

Almost surely, 2^764647062533 is an apocalyptic number.

It is an amenable number.

764647062533 is a deficient number, since it is larger than the sum of its proper divisors (1).

764647062533 is an equidigital number, since it uses as much as digits as its factorization.

764647062533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15240960, while the sum is 53.

The spelling of 764647062533 in words is "seven hundred sixty-four billion, six hundred forty-seven million, sixty-two thousand, five hundred thirty-three".