64594960889 has 2 divisors, whose sum is σ = 64594960890. Its totient is φ = 64594960888.

The previous prime is 64594960883. The next prime is 64594960909. The reversal of 64594960889 is 98806949546.

64594960889 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., 44901610000 + 19693350889 = 211900^2 + 140333^2 .

It is a cyclic number.

It is not a de Polignac number, because 64594960889 - 2²⁸ = 64326525433 is a prime.

It is not a weakly prime, because it can be changed into another prime (64594960883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32297480444 + 32297480445.

It is an arithmetic number, because the mean of its divisors is an integer number (32297480445).

Almost surely, 2^64594960889 is an apocalyptic number.

It is an amenable number.

64594960889 is a deficient number, since it is larger than the sum of its proper divisors (1).

64594960889 is an equidigital number, since it uses as much as digits as its factorization.

64594960889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 134369280, while the sum is 68.

The spelling of 64594960889 in words is "sixty-four billion, five hundred ninety-four million, nine hundred sixty thousand, eight hundred eighty-nine".