64913605759 has 2 divisors, whose sum is σ = 64913605760. Its totient is φ = 64913605758.

The previous prime is 64913605753. The next prime is 64913605763. The reversal of 64913605759 is 95750631946.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64913605759 - 2³ = 64913605751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64913605751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32456802879 + 32456802880.

It is an arithmetic number, because the mean of its divisors is an integer number (32456802880).

Almost surely, 2^64913605759 is an apocalyptic number.

64913605759 is a deficient number, since it is larger than the sum of its proper divisors (1).

64913605759 is an equidigital number, since it uses as much as digits as its factorization.

64913605759 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6123600, while the sum is 55.

The spelling of 64913605759 in words is "sixty-four billion, nine hundred thirteen million, six hundred five thousand, seven hundred fifty-nine".