4638699664 has 15 divisors (see below), whose sum is σ = 8988008467. Its totient is φ = 2319213616.

The previous prime is 4638699649. The next prime is 4638699673. The reversal of 4638699664 is 4669968364.

The square root of 4638699664 is 68108.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 263919 + ... + 280945.

Almost surely, 2^4638699664 is an apocalyptic number.

4638699664 is the 68108-th square number.

It is an amenable number.

4638699664 is a deficient number, since it is larger than the sum of its proper divisors (4349308803).

4638699664 is an frugal number, since it uses more digits than its factorization.

4638699664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34062 (or 17029 counting only the distinct ones).

The product of its digits is 40310784, while the sum is 61.

The cubic root of 4638699664 is about 1667.7543607896.

The spelling of 4638699664 in words is "four billion, six hundred thirty-eight million, six hundred ninety-nine thousand, six hundred sixty-four".