68523572794 has 8 divisors (see below), whose sum is σ = 102786766740. Its totient is φ = 34261317216.

The previous prime is 68523572743. The next prime is 68523572797. The reversal of 68523572794 is 49727532586.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 67788891769 + 734681025 = 260363^2 + 27105^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (68523572797) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8419 + ... + 370294.

Almost surely, 2^68523572794 is an apocalyptic number.

68523572794 is a deficient number, since it is larger than the sum of its proper divisors (34263193946).

68523572794 is a wasteful number, since it uses less digits than its factorization.

68523572794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469184.

The product of its digits is 25401600, while the sum is 58.

The spelling of 68523572794 in words is "sixty-eight billion, five hundred twenty-three million, five hundred seventy-two thousand, seven hundred ninety-four".