3921818898 has 16 divisors (see below), whose sum is σ = 7844338656. Its totient is φ = 1307156160.

The previous prime is 3921818881. The next prime is 3921818903. The reversal of 3921818898 is 8988181293.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68890 + ... + 112202.

It is an arithmetic number, because the mean of its divisors is an integer number (490271166).

Almost surely, 2^3921818898 is an apocalyptic number.

3921818898 is an abundant number, since it is smaller than the sum of its proper divisors (3922519758).

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

3921818898 is a wasteful number, since it uses less digits than its factorization.

3921818898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58409.

The product of its digits is 1990656, while the sum is 57.

The square root of 3921818898 is about 62624.4273267229. The cubic root of 3921818898 is about 1576.9908675325.

The spelling of 3921818898 in words is "three billion, nine hundred twenty-one million, eight hundred eighteen thousand, eight hundred ninety-eight".