3844966838920 has 64 divisors (see below), whose sum is σ = 8903964009600. Its totient is φ = 1493693160960.

The previous prime is 3844966838917. The next prime is 3844966838941. The reversal of 3844966838920 is 298386694483.

It is a self number, because there is not a number n which added to its sum of digits gives 3844966838920.

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, 9913165 + ... + 10293724.

It is an arithmetic number, because the mean of its divisors is an integer number (139124437650).

Almost surely, 2^{3844966838920} is an apocalyptic number.

It is an amenable number.

3844966838920 is an abundant number, since it is smaller than the sum of its proper divisors (5058997170680).

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

3844966838920 is a wasteful number, since it uses less digits than its factorization.

3844966838920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20207038 (or 20207034 counting only the distinct ones).

The product of its (nonzero) digits is 429981696, while the sum is 70.

The spelling of 3844966838920 in words is "three trillion, eight hundred forty-four billion, nine hundred sixty-six million, eight hundred thirty-eight thousand, nine hundred twenty".