4243664524 has 36 divisors (see below), whose sum is σ = 8371395144. Its totient is φ = 1866696000.

The previous prime is 4243664521. The next prime is 4243664527. The reversal of 4243664524 is 4254663424.

It is an interprime number because it is at equal distance from previous prime (4243664521) and next prime (4243664527).

It is a super-2 number, since 2×4243664524² = 36017377184512293152, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4243664521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7897 + ... + 92464.

It is an arithmetic number, because the mean of its divisors is an integer number (232538754).

Almost surely, 2^4243664524 is an apocalyptic number.

4243664524 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

4243664524 is a deficient number, since it is larger than the sum of its proper divisors (4127730620).

4243664524 is a wasteful number, since it uses less digits than its factorization.

4243664524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100438 (or 100405 counting only the distinct ones).

The product of its digits is 552960, while the sum is 40.

The square root of 4243664524 is about 65143.4150471097. The cubic root of 4243664524 is about 1619.0006186823. Note that the first 3 decimals are identical.

The spelling of 4243664524 in words is "four billion, two hundred forty-three million, six hundred sixty-four thousand, five hundred twenty-four".