68224642576 has 20 divisors (see below), whose sum is σ = 132213320172. Its totient is φ = 34105076096.

The previous prime is 68224642567. The next prime is 68224642579. The reversal of 68224642576 is 67524642286.

It can be written as a sum of positive squares in 2 ways, for example, as 36739688976 + 31484953600 = 191676^2 + 177440^2 .

It is not an unprimeable number, because it can be changed into a prime (68224642579) 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, 374731 + ... + 526186.

Almost surely, 2^68224642576 is an apocalyptic number.

It is an amenable number.

68224642576 is a deficient number, since it is larger than the sum of its proper divisors (63988677596).

68224642576 is a wasteful number, since it uses less digits than its factorization.

68224642576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905658 (or 905652 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 52.

The spelling of 68224642576 in words is "sixty-eight billion, two hundred twenty-four million, six hundred forty-two thousand, five hundred seventy-six".