11951452800000 has 1980 divisors, whose sum is σ = 51947088368868. Its totient is φ = 2728857600000.

The previous prime is 11951452799999. The next prime is 11951452800071. The reversal of 11951452800000 is 825415911.

11951452800000 is a `hidden beast` number, since 1 + 19 + 514 + 52 + 80 + 0 + 0 + 0 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 9291474468864 + 2659978331136 = 3048192^2 + 1630944^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 12700799530 + ... + 12700800470.

Almost surely, 2^{11951452800000} is an apocalyptic number.

11951452800000 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 11951452800000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25973544184434).

11951452800000 is an abundant number, since it is smaller than the sum of its proper divisors (39995635568868).

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

11951452800000 is an frugal number, since it uses more digits than its factorization.

11951452800000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012 (or 958 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 36.

The spelling of 11951452800000 in words is "eleven trillion, nine hundred fifty-one billion, four hundred fifty-two million, eight hundred thousand".