3818122668 has 36 divisors (see below), whose sum is σ = 9677697120. Its totient is φ = 1269235296.

The previous prime is 3818122639. The next prime is 3818122697. The reversal of 3818122668 is 8662218183.

3818122668 is a `hidden beast` number, since 381 + 8 + 1 + 2 + 266 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (3818122639) and next prime (3818122697).

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131283 + ... + 157706.

It is an arithmetic number, because the mean of its divisors is an integer number (268824920).

Almost surely, 2^3818122668 is an apocalyptic number.

It is an amenable number.

3818122668 is an abundant number, since it is smaller than the sum of its proper divisors (5859574452).

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

3818122668 is a wasteful number, since it uses less digits than its factorization.

3818122668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289366 (or 289361 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 3818122668 is about 61790.9594358269. The cubic root of 3818122668 is about 1562.9675416894.

The spelling of 3818122668 in words is "three billion, eight hundred eighteen million, one hundred twenty-two thousand, six hundred sixty-eight".