68613788 has 24 divisors (see below), whose sum is σ = 130475520. Its totient is φ = 31451760.

The previous prime is 68613763. The next prime is 68613803. The reversal of 68613788 is 88731686.

It is a congruent 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, 12206 + ... + 16917.

It is an arithmetic number, because the mean of its divisors is an integer number (5436480).

Almost surely, 2^68613788 is an apocalyptic number.

It is an amenable number.

68613788 is a deficient number, since it is larger than the sum of its proper divisors (61861732).

68613788 is a wasteful number, since it uses less digits than its factorization.

68613788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29177 (or 29175 counting only the distinct ones).

The product of its digits is 387072, while the sum is 47.

The square root of 68613788 is about 8283.3440107242. The cubic root of 68613788 is about 409.3899076054.

The spelling of 68613788 in words is "sixty-eight million, six hundred thirteen thousand, seven hundred eighty-eight".