68113538 has 8 divisors (see below), whose sum is σ = 102689532. Its totient is φ = 33883696.

The previous prime is 68113519. The next prime is 68113561. The reversal of 68113538 is 83531186.

It can be written as a sum of positive squares in 2 ways, for example, as 66797929 + 1315609 = 8173^2 + 1147^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 68113498 and 68113507.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86045 + ... + 86832.

Almost surely, 2^68113538 is an apocalyptic number.

68113538 is a deficient number, since it is larger than the sum of its proper divisors (34575994).

68113538 is a wasteful number, since it uses less digits than its factorization.

68113538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173076.

The product of its digits is 17280, while the sum is 35.

The square root of 68113538 is about 8253.0926324621. The cubic root of 68113538 is about 408.3925519926.

The spelling of 68113538 in words is "sixty-eight million, one hundred thirteen thousand, five hundred thirty-eight".