642896174416 has 20 divisors (see below), whose sum is σ = 1263155161824. Its totient is φ = 316920648800.

The previous prime is 642896174311. The next prime is 642896174449. The reversal of 642896174416 is 614471698246.

It is a happy number.

642896174416 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 282963730 + ... + 282966001.

Almost surely, 2^642896174416 is an apocalyptic number.

It is an amenable number.

642896174416 is a deficient number, since it is larger than the sum of its proper divisors (620258987408).

642896174416 is a wasteful number, since it uses less digits than its factorization.

642896174416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565929810 (or 565929804 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 58.

The spelling of 642896174416 in words is "six hundred forty-two billion, eight hundred ninety-six million, one hundred seventy-four thousand, four hundred sixteen".