68461968 has 20 divisors (see below), whose sum is σ = 176860208. Its totient is φ = 22820640.

The previous prime is 68461949. The next prime is 68461999. The reversal of 68461968 is 86916486.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 1426291 = 68461968 / (6 + 8 + 4 + 6 + 1 + 9 + 6 + 8).

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, 713098 + ... + 713193.

Almost surely, 2^68461968 is an apocalyptic number.

It is an amenable number.

68461968 is an abundant number, since it is smaller than the sum of its proper divisors (108398240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68461968 is a wasteful number, since it uses less digits than its factorization.

68461968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1426302 (or 1426296 counting only the distinct ones).

The product of its digits is 497664, while the sum is 48.

The square root of 68461968 is about 8274.1747624763. The cubic root of 68461968 is about 409.0877357150.

The spelling of 68461968 in words is "sixty-eight million, four hundred sixty-one thousand, nine hundred sixty-eight".