1201794328800 has 432 divisors, whose sum is σ = 4675141428048. Its totient is φ = 288610099200.

The previous prime is 1201794328739. The next prime is 1201794328829. The reversal of 1201794328800 is 88234971021.

It is a happy number.

1201794328800 is a `hidden beast` number, since 1 + 201 + 7 + 9 + 432 + 8 + 8 + 0 + 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 71 ways as a sum of consecutive naturals, for example, 3681019 + ... + 3994181.

It is an arithmetic number, because the mean of its divisors is an integer number (10822086639).

Almost surely, 2^{1201794328800} is an apocalyptic number.

1201794328800 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 1201794328800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2337570714024).

1201794328800 is an abundant number, since it is smaller than the sum of its proper divisors (3473347099248).

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

1201794328800 is a wasteful number, since it uses less digits than its factorization.

1201794328800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313243 (or 313227 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 1201794328800 in words is "one trillion, two hundred one billion, seven hundred ninety-four million, three hundred twenty-eight thousand, eight hundred".