68916015 has 112 divisors (see below), whose sum is σ = 147528768. Its totient is φ = 30233088.

The previous prime is 68915969. The next prime is 68916019. The reversal of 68916015 is 51061986.

It is not a de Polignac number, because 68916015 - 2²⁵ = 35361583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68916019) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 944019 + ... + 944091.

Almost surely, 2^68916015 is an apocalyptic number.

68916015 is an abundant number, since it is smaller than the sum of its proper divisors (78612753).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68916015 is an equidigital number, since it uses as much as digits as its factorization.

68916015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 68916015 is about 8301.5670207498. The cubic root of 68916015 is about 409.9901147726.

The spelling of 68916015 in words is "sixty-eight million, nine hundred sixteen thousand, fifteen".