64136550599993 has 2 divisors, whose sum is σ = 64136550599994. Its totient is φ = 64136550599992.

The previous prime is 64136550599959. The next prime is 64136550600113. The reversal of 64136550599993 is 39999505563146.

64136550599993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40202802562624 + 23933748037369 = 6340568^2 + 4892213^2 .

It is a cyclic number.

It is not a de Polignac number, because 64136550599993 - 2¹⁰ = 64136550598969 is a prime.

It is a super-2 number, since 2×64136550599993² (a number of 28 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 64136550599993.

It is not a weakly prime, because it can be changed into another prime (64136550559993) 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, 32068275299996 + 32068275299997.

It is an arithmetic number, because the mean of its divisors is an integer number (32068275299997).

Almost surely, 2^{64136550599993} is an apocalyptic number.

It is an amenable number.

64136550599993 is a deficient number, since it is larger than the sum of its proper divisors (1).

64136550599993 is an equidigital number, since it uses as much as digits as its factorization.

64136550599993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1062882000, while the sum is 74.

The spelling of 64136550599993 in words is "sixty-four trillion, one hundred thirty-six billion, five hundred fifty million, five hundred ninety-nine thousand, nine hundred ninety-three".