68181950 has 24 divisors (see below), whose sum is σ = 127210608. Its totient is φ = 27188480.

The previous prime is 68181943. The next prime is 68182001. The reversal of 68181950 is 5918186.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15719 + ... + 19581.

It is an arithmetic number, because the mean of its divisors is an integer number (5300442).

Almost surely, 2^68181950 is an apocalyptic number.

68181950 is a deficient number, since it is larger than the sum of its proper divisors (59028658).

68181950 is a wasteful number, since it uses less digits than its factorization.

68181950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4228 (or 4223 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 38.

The square root of 68181950 is about 8257.2362204311. The cubic root of 68181950 is about 408.5292335957.

The spelling of 68181950 in words is "sixty-eight million, one hundred eighty-one thousand, nine hundred fifty".