68999995 has 8 divisors (see below), whose sum is σ = 84561984. Its totient is φ = 54025344.

The previous prime is 68999981. The next prime is 69000047. The reversal of 68999995 is 59999986.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68999995 - 2²⁵ = 35445563 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146574 + ... + 147043.

It is an arithmetic number, because the mean of its divisors is an integer number (10570248).

Almost surely, 2^68999995 is an apocalyptic number.

68999995 is a deficient number, since it is larger than the sum of its proper divisors (15561989).

68999995 is a wasteful number, since it uses less digits than its factorization.

68999995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293669.

The product of its digits is 14171760, while the sum is 64.

The square root of 68999995 is about 8306.6235619534. The cubic root of 68999995 is about 410.1565830631.

Subtracting from 68999995 its reverse (59999986), we obtain a palindrome (9000009).

The spelling of 68999995 in words is "sixty-eight million, nine hundred ninety-nine thousand, nine hundred ninety-five".