65735239013 has 2 divisors, whose sum is σ = 65735239014. Its totient is φ = 65735239012.

The previous prime is 65735239001. The next prime is 65735239021. The reversal of 65735239013 is 31093253756.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52158794689 + 13576444324 = 228383^2 + 116518^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65735239013 is a prime.

It is a super-2 number, since 2×65735239013² (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 (65735239093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32867619506 + 32867619507.

It is an arithmetic number, because the mean of its divisors is an integer number (32867619507).

Almost surely, 2^65735239013 is an apocalyptic number.

It is an amenable number.

65735239013 is a deficient number, since it is larger than the sum of its proper divisors (1).

65735239013 is an equidigital number, since it uses as much as digits as its factorization.

65735239013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 510300, while the sum is 44.

The spelling of 65735239013 in words is "sixty-five billion, seven hundred thirty-five million, two hundred thirty-nine thousand, thirteen".