2491372800000 has 1728 divisors, whose sum is σ = 10619702795520. Its totient is φ = 550748160000.

The previous prime is 2491372799953. The next prime is 2491372800053. The reversal of 2491372800000 is 82731942.

2491372800000 is a `hidden beast` number, since 249 + 137 + 280 + 0 + 0 + 0 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 14918399917 + ... + 14918400083.

It is an arithmetic number, because the mean of its divisors is an integer number (6145661340).

Almost surely, 2^{2491372800000} is an apocalyptic number.

2491372800000 is a gapful number since it is divisible by the number (20) 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 2491372800000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5309851397760).

2491372800000 is an abundant number, since it is smaller than the sum of its proper divisors (8128329995520).

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

2491372800000 is an equidigital number, since it uses as much as digits as its factorization.

2491372800000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 2491372800000 in words is "two trillion, four hundred ninety-one billion, three hundred seventy-two million, eight hundred thousand".