64188939239959 has 2 divisors, whose sum is σ = 64188939239960. Its totient is φ = 64188939239958.

The previous prime is 64188939239939. The next prime is 64188939240001. The reversal of 64188939239959 is 95993293988146.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64188939239959 - 2¹⁷ = 64188939108887 is a prime.

It is a super-2 number, since 2×64188939239959² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64188939239939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32094469619979 + 32094469619980.

It is an arithmetic number, because the mean of its divisors is an integer number (32094469619980).

Almost surely, 2^{64188939239959} is an apocalyptic number.

64188939239959 is a deficient number, since it is larger than the sum of its proper divisors (1).

64188939239959 is an equidigital number, since it uses as much as digits as its factorization.

64188939239959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8162933760, while the sum is 85.

The spelling of 64188939239959 in words is "sixty-four trillion, one hundred eighty-eight billion, nine hundred thirty-nine million, two hundred thirty-nine thousand, nine hundred fifty-nine".