3818912845 has 16 divisors (see below), whose sum is σ = 5000713920. Its totient is φ = 2776608000.

The previous prime is 3818912813. The next prime is 3818912863. The reversal of 3818912845 is 5482198183.

It is a happy number.

It is not a de Polignac number, because 3818912845 - 2⁵ = 3818912813 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248341 + ... + 263269.

It is an arithmetic number, because the mean of its divisors is an integer number (312544620).

Almost surely, 2^3818912845 is an apocalyptic number.

It is an amenable number.

3818912845 is a deficient number, since it is larger than the sum of its proper divisors (1181801075).

3818912845 is a wasteful number, since it uses less digits than its factorization.

3818912845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19596.

The product of its digits is 552960, while the sum is 49.

The square root of 3818912845 is about 61797.3530582014. The cubic root of 3818912845 is about 1563.0753552165.

The spelling of 3818912845 in words is "three billion, eight hundred eighteen million, nine hundred twelve thousand, eight hundred forty-five".