64422013457 has 2 divisors, whose sum is σ = 64422013458. Its totient is φ = 64422013456.

The previous prime is 64422013387. The next prime is 64422013589. The reversal of 64422013457 is 75431022446.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60449106496 + 3972906961 = 245864^2 + 63031^2 .

It is a cyclic number.

It is not a de Polignac number, because 64422013457 - 2²⁴ = 64405236241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64422013457.

It is not a weakly prime, because it can be changed into another prime (64422013057) 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, 32211006728 + 32211006729.

It is an arithmetic number, because the mean of its divisors is an integer number (32211006729).

Almost surely, 2^64422013457 is an apocalyptic number.

It is an amenable number.

64422013457 is a deficient number, since it is larger than the sum of its proper divisors (1).

64422013457 is an equidigital number, since it uses as much as digits as its factorization.

64422013457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 161280, while the sum is 38.

The spelling of 64422013457 in words is "sixty-four billion, four hundred twenty-two million, thirteen thousand, four hundred fifty-seven".