68191794 has 80 divisors (see below), whose sum is σ = 176574816. Its totient is φ = 19440000.

The previous prime is 68191793. The next prime is 68191801. The reversal of 68191794 is 49719186.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68191793) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 29169 + ... + 31419.

Almost surely, 2^68191794 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68191794, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88287408).

68191794 is an abundant number, since it is smaller than the sum of its proper divisors (108383022).

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

68191794 is a wasteful number, since it uses less digits than its factorization.

68191794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2293 (or 2284 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 68191794 is about 8257.8322821428. The cubic root of 68191794 is about 408.5488935802.

The spelling of 68191794 in words is "sixty-eight million, one hundred ninety-one thousand, seven hundred ninety-four".