68315599 has 16 divisors (see below), whose sum is σ = 77829120. Its totient is φ = 59400000.

The previous prime is 68315593. The next prime is 68315603. The reversal of 68315599 is 99551386.

It is not a de Polignac number, because 68315599 - 2³ = 68315591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68315591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29224 + ... + 31474.

It is an arithmetic number, because the mean of its divisors is an integer number (4864320).

Almost surely, 2^68315599 is an apocalyptic number.

68315599 is a deficient number, since it is larger than the sum of its proper divisors (9513521).

68315599 is a wasteful number, since it uses less digits than its factorization.

68315599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2382.

The product of its digits is 291600, while the sum is 46.

The square root of 68315599 is about 8265.3250994743. The cubic root of 68315599 is about 408.7959898625.

The spelling of 68315599 in words is "sixty-eight million, three hundred fifteen thousand, five hundred ninety-nine".