64757875639 has 2 divisors, whose sum is σ = 64757875640. Its totient is φ = 64757875638.

The previous prime is 64757875573. The next prime is 64757875669. The reversal of 64757875639 is 93657875746.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64757875639 - 2¹⁵ = 64757842871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64757875669) 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, 32378937819 + 32378937820.

It is an arithmetic number, because the mean of its divisors is an integer number (32378937820).

Almost surely, 2^64757875639 is an apocalyptic number.

64757875639 is a deficient number, since it is larger than the sum of its proper divisors (1).

64757875639 is an equidigital number, since it uses as much as digits as its factorization.

64757875639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 266716800, while the sum is 67.

The spelling of 64757875639 in words is "sixty-four billion, seven hundred fifty-seven million, eight hundred seventy-five thousand, six hundred thirty-nine".