64942893519319 has 2 divisors, whose sum is σ = 64942893519320. Its totient is φ = 64942893519318.

The previous prime is 64942893519191. The next prime is 64942893519349. The reversal of 64942893519319 is 91391539824946.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64942893519319 - 2⁷ = 64942893519191 is a prime.

It is a super-2 number, since 2×64942893519319² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64942893519349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32471446759659 + 32471446759660.

It is an arithmetic number, because the mean of its divisors is an integer number (32471446759660).

Almost surely, 2^{64942893519319} is an apocalyptic number.

64942893519319 is a deficient number, since it is larger than the sum of its proper divisors (1).

64942893519319 is an equidigital number, since it uses as much as digits as its factorization.

64942893519319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 453496320, while the sum is 73.

The spelling of 64942893519319 in words is "sixty-four trillion, nine hundred forty-two billion, eight hundred ninety-three million, five hundred nineteen thousand, three hundred nineteen".