2780863153200 has 480 divisors, whose sum is σ = 11089459038720. Its totient is φ = 655927372800.

The previous prime is 2780863153193. The next prime is 2780863153213. The reversal of 2780863153200 is 23513680872.

2780863153200 is a `hidden beast` number, since 2 + 7 + 8 + 0 + 8 + 6 + 315 + 320 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 95 ways as a sum of consecutive naturals, for example, 4079277 + ... + 4711923.

It is an arithmetic number, because the mean of its divisors is an integer number (23103039664).

Almost surely, 2^{2780863153200} is an apocalyptic number.

2780863153200 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 2780863153200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5544729519360).

2780863153200 is an abundant number, since it is smaller than the sum of its proper divisors (8308595885520).

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

2780863153200 is a wasteful number, since it uses less digits than its factorization.

2780863153200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632722 (or 632705 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 2780863153200 in words is "two trillion, seven hundred eighty billion, eight hundred sixty-three million, one hundred fifty-three thousand, two hundred".