399467113776 has 320 divisors, whose sum is σ = 1207489382400. Its totient is φ = 126319564800.

The previous prime is 399467113757. The next prime is 399467113783. The reversal of 399467113776 is 677311764993.

399467113776 is a `hidden beast` number, since 3 + 99 + 467 + 1 + 13 + 7 + 76 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 93747486 + ... + 93751746.

It is an arithmetic number, because the mean of its divisors is an integer number (3773404320).

Almost surely, 2^399467113776 is an apocalyptic number.

399467113776 is a gapful number since it is divisible by the number (36) 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 399467113776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (603744691200).

399467113776 is an abundant number, since it is smaller than the sum of its proper divisors (808022268624).

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

399467113776 is a wasteful number, since it uses less digits than its factorization.

399467113776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4465 (or 4453 counting only the distinct ones).

The product of its digits is 36006768, while the sum is 63.

The spelling of 399467113776 in words is "three hundred ninety-nine billion, four hundred sixty-seven million, one hundred thirteen thousand, seven hundred seventy-six".