64246461173 has 2 divisors, whose sum is σ = 64246461174. Its totient is φ = 64246461172.

The previous prime is 64246461163. The next prime is 64246461211. The reversal of 64246461173 is 37116464246.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56077555249 + 8168905924 = 236807^2 + 90382^2 .

It is a cyclic number.

It is not a de Polignac number, because 64246461173 - 2⁸ = 64246460917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64246461113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32123230586 + 32123230587.

It is an arithmetic number, because the mean of its divisors is an integer number (32123230587).

Almost surely, 2^64246461173 is an apocalyptic number.

It is an amenable number.

64246461173 is a deficient number, since it is larger than the sum of its proper divisors (1).

64246461173 is an equidigital number, since it uses as much as digits as its factorization.

64246461173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 44.

The spelling of 64246461173 in words is "sixty-four billion, two hundred forty-six million, four hundred sixty-one thousand, one hundred seventy-three".