64757876431 has 2 divisors, whose sum is σ = 64757876432. Its totient is φ = 64757876430.

The previous prime is 64757876429. The next prime is 64757876479. The reversal of 64757876431 is 13467875746.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64757876431 - 2¹ = 64757876429 is a prime.

It is a super-2 number, since 2×64757876431² (a number of 22 digits) contains 22 as substring.

Together with 64757876429, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64757876411) 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, 32378938215 + 32378938216.

It is an arithmetic number, because the mean of its divisors is an integer number (32378938216).

Almost surely, 2^64757876431 is an apocalyptic number.

64757876431 is a deficient number, since it is larger than the sum of its proper divisors (1).

64757876431 is an equidigital number, since it uses as much as digits as its factorization.

64757876431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23708160, while the sum is 58.

The spelling of 64757876431 in words is "sixty-four billion, seven hundred fifty-seven million, eight hundred seventy-six thousand, four hundred thirty-one".