64929377627 has 2 divisors, whose sum is σ = 64929377628. Its totient is φ = 64929377626.

The previous prime is 64929377573. The next prime is 64929377651. The reversal of 64929377627 is 72677392946.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64929377627 - 2²⁰ = 64928329051 is a prime.

It is a super-2 number, since 2×64929377627² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64929377627.

It is not a weakly prime, because it can be changed into another prime (64929377677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32464688813 + 32464688814.

It is an arithmetic number, because the mean of its divisors is an integer number (32464688814).

Almost surely, 2^64929377627 is an apocalyptic number.

64929377627 is a deficient number, since it is larger than the sum of its proper divisors (1).

64929377627 is an equidigital number, since it uses as much as digits as its factorization.

64929377627 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48009024, while the sum is 62.

The spelling of 64929377627 in words is "sixty-four billion, nine hundred twenty-nine million, three hundred seventy-seven thousand, six hundred twenty-seven".