64576039765843 has 2 divisors, whose sum is σ = 64576039765844. Its totient is φ = 64576039765842.

The previous prime is 64576039765841. The next prime is 64576039765847. The reversal of 64576039765843 is 34856793067546.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64576039765843 - 2¹ = 64576039765841 is a prime.

Together with 64576039765841, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (64576039765841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32288019882921 + 32288019882922.

It is an arithmetic number, because the mean of its divisors is an integer number (32288019882922).

Almost surely, 2^{64576039765843} is an apocalyptic number.

64576039765843 is a deficient number, since it is larger than the sum of its proper divisors (1).

64576039765843 is an equidigital number, since it uses as much as digits as its factorization.

64576039765843 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2743372800, while the sum is 73.

The spelling of 64576039765843 in words is "sixty-four trillion, five hundred seventy-six billion, thirty-nine million, seven hundred sixty-five thousand, eight hundred forty-three".