64579372787 has 2 divisors, whose sum is σ = 64579372788. Its totient is φ = 64579372786.

The previous prime is 64579372769. The next prime is 64579372807. The reversal of 64579372787 is 78727397546.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64579372787 - 2⁶ = 64579372723 is a prime.

It is a super-2 number, since 2×64579372787² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64579372717) 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, 32289686393 + 32289686394.

It is an arithmetic number, because the mean of its divisors is an integer number (32289686394).

Almost surely, 2^64579372787 is an apocalyptic number.

64579372787 is a deficient number, since it is larger than the sum of its proper divisors (1).

64579372787 is an equidigital number, since it uses as much as digits as its factorization.

64579372787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124467840, while the sum is 65.

The spelling of 64579372787 in words is "sixty-four billion, five hundred seventy-nine million, three hundred seventy-two thousand, seven hundred eighty-seven".