64361265599 has 2 divisors, whose sum is σ = 64361265600. Its totient is φ = 64361265598.

The previous prime is 64361265593. The next prime is 64361265611. The reversal of 64361265599 is 99556216346.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64361265599 - 2⁸ = 64361265343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64361265593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32180632799 + 32180632800.

It is an arithmetic number, because the mean of its divisors is an integer number (32180632800).

Almost surely, 2^64361265599 is an apocalyptic number.

64361265599 is a deficient number, since it is larger than the sum of its proper divisors (1).

64361265599 is an equidigital number, since it uses as much as digits as its factorization.

64361265599 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10497600, while the sum is 56.

The spelling of 64361265599 in words is "sixty-four billion, three hundred sixty-one million, two hundred sixty-five thousand, five hundred ninety-nine".