64635202757 has 2 divisors, whose sum is σ = 64635202758. Its totient is φ = 64635202756.

The previous prime is 64635202741. The next prime is 64635202759. The reversal of 64635202757 is 75720253646.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46551946081 + 18083256676 = 215759^2 + 134474^2 .

It is a cyclic number.

It is not a de Polignac number, because 64635202757 - 2⁴ = 64635202741 is a prime.

Together with 64635202759, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64635202759) 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, 32317601378 + 32317601379.

It is an arithmetic number, because the mean of its divisors is an integer number (32317601379).

Almost surely, 2^64635202757 is an apocalyptic number.

It is an amenable number.

64635202757 is a deficient number, since it is larger than the sum of its proper divisors (1).

64635202757 is an equidigital number, since it uses as much as digits as its factorization.

64635202757 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2116800, while the sum is 47.

The spelling of 64635202757 in words is "sixty-four billion, six hundred thirty-five million, two hundred two thousand, seven hundred fifty-seven".