399376184896 has 112 divisors (see below), whose sum is σ = 900592560000. Its totient is φ = 174331441152.

The previous prime is 399376184843. The next prime is 399376184897. The reversal of 399376184896 is 698481673993.

It is not an unprimeable number, because it can be changed into a prime (399376184897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1585855 + ... + 1820353.

It is an arithmetic number, because the mean of its divisors is an integer number (8041005000).

Almost surely, 2^399376184896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 399376184896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (450296280000).

399376184896 is an abundant number, since it is smaller than the sum of its proper divisors (501216375104).

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

399376184896 is a wasteful number, since it uses less digits than its factorization.

399376184896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234636 (or 234626 counting only the distinct ones).

The product of its digits is 423263232, while the sum is 73.

The spelling of 399376184896 in words is "three hundred ninety-nine billion, three hundred seventy-six million, one hundred eighty-four thousand, eight hundred ninety-six".