2785425523920 has 120 divisors (see below), whose sum is σ = 10073955678696. Its totient is φ = 685643203584.

The previous prime is 2785425523919. The next prime is 2785425523931. The reversal of 2785425523920 is 293255245872.

It is a happy number.

2785425523920 is a `hidden beast` number, since 2 + 7 + 8 + 5 + 4 + 25 + 523 + 92 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 99156971664 + 2686268552256 = 314892^2 + 1638984^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

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, 148784739 + ... + 148803458.

Almost surely, 2^{2785425523920} is an apocalyptic number.

2785425523920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2785425523920 is an abundant number, since it is smaller than the sum of its proper divisors (7288530154776).

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

2785425523920 is a wasteful number, since it uses less digits than its factorization.

2785425523920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297588229 (or 297588220 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 54.

The spelling of 2785425523920 in words is "two trillion, seven hundred eighty-five billion, four hundred twenty-five million, five hundred twenty-three thousand, nine hundred twenty".