68608372624 has 45 divisors (see below), whose sum is σ = 146136284049. Its totient is φ = 31180385280.

The previous prime is 68608372621. The next prime is 68608372669. The reversal of 68608372624 is 42627380686.

The square root of 68608372624 is 261932.

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., 575040400 + 68033332224 = 23980^2 + 260832^2 .

It is a super-2 number, since 2×68608372624² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68608372621) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 11522032 + ... + 11527984.

Almost surely, 2^68608372624 is an apocalyptic number.

68608372624 is the 261932-nd square number.

It is an amenable number.

68608372624 is an abundant number, since it is smaller than the sum of its proper divisors (77527911425).

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

68608372624 is an frugal number, since it uses more digits than its factorization.

68608372624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11936 (or 5966 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 52.

The spelling of 68608372624 in words is "sixty-eight billion, six hundred eight million, three hundred seventy-two thousand, six hundred twenty-four".