634051264816 has 20 divisors (see below), whose sum is σ = 1236299007712. Its totient is φ = 315006359616.

The previous prime is 634051264811. The next prime is 634051264867. The reversal of 634051264816 is 618462150436.

It is not an unprimeable number, because it can be changed into a prime (634051264811) 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, 126201960 + ... + 126206983.

Almost surely, 2^634051264816 is an apocalyptic number.

It is an amenable number.

634051264816 is a deficient number, since it is larger than the sum of its proper divisors (602247742896).

634051264816 is a wasteful number, since it uses less digits than its factorization.

634051264816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252409108 (or 252409102 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 46.

The spelling of 634051264816 in words is "six hundred thirty-four billion, fifty-one million, two hundred sixty-four thousand, eight hundred sixteen".