64818011579 has 2 divisors, whose sum is σ = 64818011580. Its totient is φ = 64818011578.

The previous prime is 64818011543. The next prime is 64818011651. The reversal of 64818011579 is 97511081846.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64818011579 - 2²⁸ = 64549576123 is a prime.

It is not a weakly prime, because it can be changed into another prime (64818011509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32409005789 + 32409005790.

It is an arithmetic number, because the mean of its divisors is an integer number (32409005790).

Almost surely, 2^64818011579 is an apocalyptic number.

64818011579 is a deficient number, since it is larger than the sum of its proper divisors (1).

64818011579 is an equidigital number, since it uses as much as digits as its factorization.

64818011579 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 50.

The spelling of 64818011579 in words is "sixty-four billion, eight hundred eighteen million, eleven thousand, five hundred seventy-nine".