68641268572 has 6 divisors (see below), whose sum is σ = 120122220008. Its totient is φ = 34320634284.

The previous prime is 68641268569. The next prime is 68641268617. The reversal of 68641268572 is 27586214686.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8580158568 + ... + 8580158575.

Almost surely, 2^68641268572 is an apocalyptic number.

It is an amenable number.

68641268572 is a deficient number, since it is larger than the sum of its proper divisors (51480951436).

68641268572 is a wasteful number, since it uses less digits than its factorization.

68641268572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17160317147 (or 17160317145 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 55.

The spelling of 68641268572 in words is "sixty-eight billion, six hundred forty-one million, two hundred sixty-eight thousand, five hundred seventy-two".