2991646451200 has 240 divisors, whose sum is σ = 8124261710400. Its totient is φ = 1082704896000.

The previous prime is 2991646451197. The next prime is 2991646451207. The reversal of 2991646451200 is 21546461992.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2991646451207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29658451 + ... + 29759149.

It is an arithmetic number, because the mean of its divisors is an integer number (33851090460).

Almost surely, 2^{2991646451200} is an apocalyptic number.

2991646451200 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 2991646451200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4062130855200).

2991646451200 is an abundant number, since it is smaller than the sum of its proper divisors (5132615259200).

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

2991646451200 is a wasteful number, since it uses less digits than its factorization.

2991646451200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100949 (or 100928 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 49.

The spelling of 2991646451200 in words is "two trillion, nine hundred ninety-one billion, six hundred forty-six million, four hundred fifty-one thousand, two hundred".