68674424746 has 24 divisors (see below), whose sum is σ = 104324059620. Its totient is φ = 33902383680.

The previous prime is 68674424743. The next prime is 68674424779. The reversal of 68674424746 is 64742447686.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 62677626025 + 5996798721 = 250355^2 + 77439^2 .

It is a super-2 number, since 2×68674424746² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68674424743) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21083550 + ... + 21086806.

Almost surely, 2^68674424746 is an apocalyptic number.

68674424746 is a deficient number, since it is larger than the sum of its proper divisors (35649634874).

68674424746 is a wasteful number, since it uses less digits than its factorization.

68674424746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3990 (or 3679 counting only the distinct ones).

The product of its digits is 43352064, while the sum is 58.

The spelling of 68674424746 in words is "sixty-eight billion, six hundred seventy-four million, four hundred twenty-four thousand, seven hundred forty-six".