4541993664 has 56 divisors (see below), whose sum is σ = 12941777520. Its totient is φ = 1397535744.

The previous prime is 4541993663. The next prime is 4541993699. The reversal of 4541993664 is 4663991454.

It is a super-2 number, since 2×4541993664² = 41259412887632289792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4541993663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 907359 + ... + 912350.

It is an arithmetic number, because the mean of its divisors is an integer number (231103170).

Almost surely, 2^4541993664 is an apocalyptic number.

It is an amenable number.

4541993664 is an abundant number, since it is smaller than the sum of its proper divisors (8399783856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4541993664 is a wasteful number, since it uses less digits than its factorization.

4541993664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1819737 (or 1819727 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 51.

The square root of 4541993664 is about 67394.3147750610. The cubic root of 4541993664 is about 1656.0832883032.

The spelling of 4541993664 in words is "four billion, five hundred forty-one million, nine hundred ninety-three thousand, six hundred sixty-four".