3818618356 has 12 divisors (see below), whose sum is σ = 7637236768. Its totient is φ = 1636550712.

The previous prime is 3818618351. The next prime is 3818618381. The reversal of 3818618356 is 6538168183.

3818618356 is an admirable number.

It is a super-2 number, since 2×3818618356² = 29163692297560285472, which contains 22 as substring.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3818618351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68189586 + ... + 68189641.

Almost surely, 2^3818618356 is an apocalyptic number.

It is an amenable number.

3818618356 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3818618356 is a wasteful number, since it uses less digits than its factorization.

3818618356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136379238 (or 136379236 counting only the distinct ones).

The product of its digits is 829440, while the sum is 49.

The square root of 3818618356 is about 61794.9703131250. The cubic root of 3818618356 is about 1563.0351762136.

The spelling of 3818618356 in words is "three billion, eight hundred eighteen million, six hundred eighteen thousand, three hundred fifty-six".