3869999804160 has 1296 divisors, whose sum is σ = 16675862740992. Its totient is φ = 855932313600.

The previous prime is 3869999804159. The next prime is 3869999804197. The reversal of 3869999804160 is 614089999683.

3869999804160 is a `hidden beast` number, since 38 + 6 + 9 + 99 + 98 + 0 + 416 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1296).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 472465665 + ... + 472473855.

Almost surely, 2^{3869999804160} is an apocalyptic number.

3869999804160 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3869999804160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8337931370496).

3869999804160 is an abundant number, since it is smaller than the sum of its proper divisors (12805862936832).

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

3869999804160 is an equidigital number, since it uses as much as digits as its factorization.

3869999804160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8272 (or 8239 counting only the distinct ones).

The product of its (nonzero) digits is 181398528, while the sum is 72.

The spelling of 3869999804160 in words is "three trillion, eight hundred sixty-nine billion, nine hundred ninety-nine million, eight hundred four thousand, one hundred sixty".