68174696772 has 144 divisors (see below), whose sum is σ = 213770432512. Its totient is φ = 17838455040.

The previous prime is 68174696771. The next prime is 68174696791. The reversal of 68174696772 is 27769647186.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (68174696771) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 334122 + ... + 497982.

Almost surely, 2^68174696772 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68174696772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106885216256).

68174696772 is an abundant number, since it is smaller than the sum of its proper divisors (145595735740).

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

68174696772 is a wasteful number, since it uses less digits than its factorization.

68174696772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164018 (or 164013 counting only the distinct ones).

The product of its digits is 42674688, while the sum is 63.

The spelling of 68174696772 in words is "sixty-eight billion, one hundred seventy-four million, six hundred ninety-six thousand, seven hundred seventy-two".