2812721466240 has 1024 divisors, whose sum is σ = 11533315276800. Its totient is φ = 634581319680.

The previous prime is 2812721466239. The next prime is 2812721466253. The reversal of 2812721466240 is 426641272182.

2812721466240 is a `hidden beast` number, since 2 + 8 + 1 + 2 + 7 + 2 + 14 + 6 + 624 + 0 = 666.

It is a super-2 number, since 2×2812721466240² (a number of 26 digits) contains 22 as substring.

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 127 ways as a sum of consecutive naturals, for example, 4255251510 + ... + 4255252170.

It is an arithmetic number, because the mean of its divisors is an integer number (11263003200).

Almost surely, 2^{2812721466240} is an apocalyptic number.

2812721466240 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 2812721466240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5766657638400).

2812721466240 is an abundant number, since it is smaller than the sum of its proper divisors (8720593810560).

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

2812721466240 is a wasteful number, since it uses less digits than its factorization.

2812721466240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100 (or 1082 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The spelling of 2812721466240 in words is "two trillion, eight hundred twelve billion, seven hundred twenty-one million, four hundred sixty-six thousand, two hundred forty".