68651142844 has 12 divisors (see below), whose sum is σ = 120176454664. Its totient is φ = 34315012944.

The previous prime is 68651142839. The next prime is 68651142853. The reversal of 68651142844 is 44824115686.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2624982 + ... + 2651005.

Almost surely, 2^68651142844 is an apocalyptic number.

It is an amenable number.

68651142844 is a deficient number, since it is larger than the sum of its proper divisors (51525311820).

68651142844 is a wasteful number, since it uses less digits than its factorization.

68651142844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5279244 (or 5279242 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 49.

The spelling of 68651142844 in words is "sixty-eight billion, six hundred fifty-one million, one hundred forty-two thousand, eight hundred forty-four".