68065362515 has 32 divisors (see below), whose sum is σ = 83441534400. Its totient is φ = 53286912000.

The previous prime is 68065362509. The next prime is 68065362529. The reversal of 68065362515 is 51526356086.

It is not a de Polignac number, because 68065362515 - 2⁶ = 68065362451 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68065362515.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82303532 + ... + 82304358.

It is an arithmetic number, because the mean of its divisors is an integer number (2607547950).

Almost surely, 2^68065362515 is an apocalyptic number.

68065362515 is a deficient number, since it is larger than the sum of its proper divisors (15376171885).

68065362515 is a wasteful number, since it uses less digits than its factorization.

68065362515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1943.

The product of its (nonzero) digits is 1296000, while the sum is 47.

The spelling of 68065362515 in words is "sixty-eight billion, sixty-five million, three hundred sixty-two thousand, five hundred fifteen".