3804278865840 has 60 divisors (see below), whose sum is σ = 12776036526864. Its totient is φ = 1014474364032.

The previous prime is 3804278865817. The next prime is 3804278865917. The reversal of 3804278865840 is 485688724083.

3804278865840 is a `hidden beast` number, since 3 + 8 + 0 + 42 + 7 + 8 + 8 + 6 + 584 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2641859604 + ... + 2641861043.

Almost surely, 2^{3804278865840} is an apocalyptic number.

3804278865840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3804278865840 is an abundant number, since it is smaller than the sum of its proper divisors (8971757661024).

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

3804278865840 is a wasteful number, since it uses less digits than its factorization.

3804278865840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5283720666 (or 5283720657 counting only the distinct ones).

The product of its (nonzero) digits is 82575360, while the sum is 63.

The spelling of 3804278865840 in words is "three trillion, eight hundred four billion, two hundred seventy-eight million, eight hundred sixty-five thousand, eight hundred forty".