68577726880 has 48 divisors (see below), whose sum is σ = 174477568104. Its totient is φ = 25321006080.

The previous prime is 68577726863. The next prime is 68577726881. The reversal of 68577726880 is 8862777586.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 52607844496 + 15969882384 = 229364^2 + 126372^2 .

It is not an unprimeable number, because it can be changed into a prime (68577726881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16482951 + ... + 16487110.

Almost surely, 2^68577726880 is an apocalyptic number.

It is an amenable number.

68577726880 is an abundant number, since it is smaller than the sum of its proper divisors (105899841224).

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

68577726880 is a wasteful number, since it uses less digits than its factorization.

68577726880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32970089 (or 32970081 counting only the distinct ones).

The product of its (nonzero) digits is 63221760, while the sum is 64.

The spelling of 68577726880 in words is "sixty-eight billion, five hundred seventy-seven million, seven hundred twenty-six thousand, eight hundred eighty".