68992376896 has 21 divisors (see below), whose sum is σ = 136910917821. Its totient is φ = 34495137792.

The previous prime is 68992376881. The next prime is 68992376897. The reversal of 68992376896 is 69867329986.

The square root of 68992376896 is 262664.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 44386062400 + 24606314496 = 210680^2 + 156864^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68992376897) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2084896 + ... + 2117728.

Almost surely, 2^68992376896 is an apocalyptic number.

68992376896 is the 262664-th square number.

It is an amenable number.

68992376896 is a deficient number, since it is larger than the sum of its proper divisors (67918540925).

68992376896 is an frugal number, since it uses more digits than its factorization.

68992376896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65678 (or 32835 counting only the distinct ones).

The product of its digits is 423263232, while the sum is 73.

The spelling of 68992376896 in words is "sixty-eight billion, nine hundred ninety-two million, three hundred seventy-six thousand, eight hundred ninety-six".