3664047818 has 16 divisors (see below), whose sum is σ = 5788026720. Its totient is φ = 1734795216.

The previous prime is 3664047817. The next prime is 3664047841. The reversal of 3664047818 is 8187404663.

It is a happy number.

It is a super-2 number, since 2×3664047818² = 26850492825181122248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3664047817) 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, 64880 + ... + 107412.

It is an arithmetic number, because the mean of its divisors is an integer number (361751670).

Almost surely, 2^3664047818 is an apocalyptic number.

3664047818 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3664047818 is a deficient number, since it is larger than the sum of its proper divisors (2123978902).

3664047818 is a wasteful number, since it uses less digits than its factorization.

3664047818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44821.

The product of its (nonzero) digits is 774144, while the sum is 47.

The square root of 3664047818 is about 60531.3787881955. The cubic root of 3664047818 is about 1541.6544621633.

The spelling of 3664047818 in words is "three billion, six hundred sixty-four million, forty-seven thousand, eight hundred eighteen".