399797551200 has 288 divisors, whose sum is σ = 1345335892992. Its totient is φ = 103018752000.

The previous prime is 399797551193. The next prime is 399797551217. The reversal of 399797551200 is 2155797993.

399797551200 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 54531535 + ... + 54538865.

It is an arithmetic number, because the mean of its divisors is an integer number (4671305184).

Almost surely, 2^399797551200 is an apocalyptic number.

399797551200 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 399797551200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (672667946496).

399797551200 is an abundant number, since it is smaller than the sum of its proper divisors (945538341792).

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

399797551200 is a wasteful number, since it uses less digits than its factorization.

399797551200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8118 (or 8105 counting only the distinct ones).

The product of its (nonzero) digits is 5358150, while the sum is 57.

The spelling of 399797551200 in words is "three hundred ninety-nine billion, seven hundred ninety-seven million, five hundred fifty-one thousand, two hundred".