4045977664 has 21 divisors (see below), whose sum is σ = 8029746831. Its totient is φ = 2022734400.

The previous prime is 4045977643. The next prime is 4045977739. The reversal of 4045977664 is 4667795404.

The square root of 4045977664 is 63608.

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, 504889 + ... + 512839.

Almost surely, 2^4045977664 is an apocalyptic number.

4045977664 is the 63608-th square number.

It is an amenable number.

4045977664 is a deficient number, since it is larger than the sum of its proper divisors (3983769167).

4045977664 is an frugal number, since it uses more digits than its factorization.

4045977664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15914 (or 7953 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 52.

The cubic root of 4045977664 is about 1593.4599790014.

The spelling of 4045977664 in words is "four billion, forty-five million, nine hundred seventy-seven thousand, six hundred sixty-four".