3612213918 has 24 divisors (see below), whose sum is σ = 8238383400. Its totient is φ = 1140699024.

The previous prime is 3612213901. The next prime is 3612213953. The reversal of 3612213918 is 8193122163.

3612213918 is a `hidden beast` number, since 3 + 612 + 2 + 1 + 39 + 1 + 8 = 666.

3612213918 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent 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, 5280673 + ... + 5281356.

It is an arithmetic number, because the mean of its divisors is an integer number (343265975).

Almost surely, 2^3612213918 is an apocalyptic number.

3612213918 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3612213918 is an abundant number, since it is smaller than the sum of its proper divisors (4626169482).

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

3612213918 is a wasteful number, since it uses less digits than its factorization.

3612213918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10562056 (or 10562053 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 3612213918 is about 60101.6964652413. The cubic root of 3612213918 is about 1534.3501750625.

The spelling of 3612213918 in words is "three billion, six hundred twelve million, two hundred thirteen thousand, nine hundred eighteen".