64489930577833 has 2 divisors, whose sum is σ = 64489930577834. Its totient is φ = 64489930577832.

The previous prime is 64489930577749. The next prime is 64489930577873. The reversal of 64489930577833 is 33877503998446.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63758500251664 + 731430326169 = 7984892^2 + 855237^2 .

It is a cyclic number.

It is not a de Polignac number, because 64489930577833 - 2²⁹ = 64489393706921 is a prime.

It is a super-2 number, since 2×64489930577833² (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 64489930577833.

It is not a weakly prime, because it can be changed into another prime (64489930577873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32244965288916 + 32244965288917.

It is an arithmetic number, because the mean of its divisors is an integer number (32244965288917).

Almost surely, 2^{64489930577833} is an apocalyptic number.

It is an amenable number.

64489930577833 is a deficient number, since it is larger than the sum of its proper divisors (1).

64489930577833 is an equidigital number, since it uses as much as digits as its factorization.

64489930577833 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3292047360, while the sum is 76.

The spelling of 64489930577833 in words is "sixty-four trillion, four hundred eighty-nine billion, nine hundred thirty million, five hundred seventy-seven thousand, eight hundred thirty-three".