65839514399 has 2 divisors, whose sum is σ = 65839514400. Its totient is φ = 65839514398.

The previous prime is 65839514341. The next prime is 65839514431. The reversal of 65839514399 is 99341593856.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65839514399 is a prime.

It is a super-2 number, since 2×65839514399² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65839514329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32919757199 + 32919757200.

It is an arithmetic number, because the mean of its divisors is an integer number (32919757200).

Almost surely, 2^65839514399 is an apocalyptic number.

65839514399 is a deficient number, since it is larger than the sum of its proper divisors (1).

65839514399 is an equidigital number, since it uses as much as digits as its factorization.

65839514399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31492800, while the sum is 62.

The spelling of 65839514399 in words is "sixty-five billion, eight hundred thirty-nine million, five hundred fourteen thousand, three hundred ninety-nine".