65379418571 has 2 divisors, whose sum is σ = 65379418572. Its totient is φ = 65379418570.

The previous prime is 65379418543. The next prime is 65379418597. The reversal of 65379418571 is 17581497356.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65379418571 - 2²² = 65375224267 is a prime.

It is not a weakly prime, because it can be changed into another prime (65370418571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32689709285 + 32689709286.

It is an arithmetic number, because the mean of its divisors is an integer number (32689709286).

Almost surely, 2^65379418571 is an apocalyptic number.

65379418571 is a deficient number, since it is larger than the sum of its proper divisors (1).

65379418571 is an equidigital number, since it uses as much as digits as its factorization.

65379418571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6350400, while the sum is 56.

The spelling of 65379418571 in words is "sixty-five billion, three hundred seventy-nine million, four hundred eighteen thousand, five hundred seventy-one".