399521882112 has 112 divisors (see below), whose sum is σ = 1075107506880. Its totient is φ = 131951296512.

The previous prime is 399521882051. The next prime is 399521882161. The reversal of 399521882112 is 211288125993.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2604213 + ... + 2753355.

Almost surely, 2^399521882112 is an apocalyptic number.

399521882112 is a gapful number since it is divisible by the number (32) 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 399521882112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (537553753440).

399521882112 is an abundant number, since it is smaller than the sum of its proper divisors (675585624768).

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

399521882112 is a wasteful number, since it uses less digits than its factorization.

399521882112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149281 (or 149257 counting only the distinct ones).

The product of its digits is 622080, while the sum is 51.

The spelling of 399521882112 in words is "three hundred ninety-nine billion, five hundred twenty-one million, eight hundred eighty-two thousand, one hundred twelve".