1199424403800 has 1152 divisors, whose sum is σ = 5175525888000. Its totient is φ = 242636083200.

The previous prime is 1199424403799. The next prime is 1199424403811. The reversal of 1199424403800 is 83044249911.

1199424403800 is a `hidden beast` number, since 1 + 1 + 99 + 42 + 440 + 3 + 80 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 215217814 + ... + 215223386.

It is an arithmetic number, because the mean of its divisors is an integer number (4492644000).

Almost surely, 2^{1199424403800} is an apocalyptic number.

1199424403800 is a gapful number since it is divisible by the number (10) 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 1199424403800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2587762944000).

1199424403800 is an abundant number, since it is smaller than the sum of its proper divisors (3976101484200).

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

1199424403800 is a wasteful number, since it uses less digits than its factorization.

1199424403800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5681 (or 5669 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 1199424403800 in words is "one trillion, one hundred ninety-nine billion, four hundred twenty-four million, four hundred three thousand, eight hundred".