64343763089 has 2 divisors, whose sum is σ = 64343763090. Its totient is φ = 64343763088.

The previous prime is 64343763067. The next prime is 64343763161. The reversal of 64343763089 is 98036734346.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41393937025 + 22949826064 = 203455^2 + 151492^2 .

It is a cyclic number.

It is not a de Polignac number, because 64343763089 - 2¹² = 64343758993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64343763089.

It is not a weakly prime, because it can be changed into another prime (64343763019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32171881544 + 32171881545.

It is an arithmetic number, because the mean of its divisors is an integer number (32171881545).

Almost surely, 2^64343763089 is an apocalyptic number.

It is an amenable number.

64343763089 is a deficient number, since it is larger than the sum of its proper divisors (1).

64343763089 is an equidigital number, since it uses as much as digits as its factorization.

64343763089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7838208, while the sum is 53.

The spelling of 64343763089 in words is "sixty-four billion, three hundred forty-three million, seven hundred sixty-three thousand, eighty-nine".