3641213618 has 24 divisors (see below), whose sum is σ = 6687946800. Its totient is φ = 1478386728.

The previous prime is 3641213603. The next prime is 3641213627. The reversal of 3641213618 is 8163121463.

It is a super-2 number, since 2×3641213618² = 26516873223817299848, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 975908 + ... + 979631.

It is an arithmetic number, because the mean of its divisors is an integer number (278664450).

Almost surely, 2^3641213618 is an apocalyptic number.

3641213618 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3641213618 is a deficient number, since it is larger than the sum of its proper divisors (3046733182).

3641213618 is a wasteful number, since it uses less digits than its factorization.

3641213618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1955574 (or 1955567 counting only the distinct ones).

The product of its digits is 20736, while the sum is 35.

The square root of 3641213618 is about 60342.4694390278. The cubic root of 3641213618 is about 1538.4452766708.

The spelling of 3641213618 in words is "three billion, six hundred forty-one million, two hundred thirteen thousand, six hundred eighteen".