68076637225 has 9 divisors (see below), whose sum is σ = 84416647863. Its totient is φ = 54460266120.

The previous prime is 68076637219. The next prime is 68076637243. The reversal of 68076637225 is 52273667086.

The square root of 68076637225 is 260915.

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., 24507589401 + 43569047824 = 156549^2 + 208732^2 .

It is not a de Polignac number, because 68076637225 - 2³ = 68076637217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1278484 + ... + 1330666.

Almost surely, 2^68076637225 is an apocalyptic number.

68076637225 is the 260915-th square number.

68076637225 is the 130458-th centered octagonal number.

It is an amenable number.

68076637225 is a deficient number, since it is larger than the sum of its proper divisors (16340010638).

68076637225 is an frugal number, since it uses more digits than its factorization.

68076637225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104376 (or 52188 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 52.

The spelling of 68076637225 in words is "sixty-eight billion, seventy-six million, six hundred thirty-seven thousand, two hundred twenty-five".