68159372 has 12 divisors (see below), whose sum is σ = 119492520. Its totient is φ = 34018656.

The previous prime is 68159369. The next prime is 68159389. The reversal of 68159372 is 27395186.

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, 12698 + ... + 17249.

It is an arithmetic number, because the mean of its divisors is an integer number (9957710).

Almost surely, 2^68159372 is an apocalyptic number.

It is an amenable number.

68159372 is a deficient number, since it is larger than the sum of its proper divisors (51333148).

68159372 is a wasteful number, since it uses less digits than its factorization.

68159372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30520 (or 30518 counting only the distinct ones).

The product of its digits is 90720, while the sum is 41.

The square root of 68159372 is about 8255.8689427582. The cubic root of 68159372 is about 408.4841347029.

The spelling of 68159372 in words is "sixty-eight million, one hundred fifty-nine thousand, three hundred seventy-two".