2785409772 has 48 divisors (see below), whose sum is σ = 6579146112. Its totient is φ = 917118720.

The previous prime is 2785409749. The next prime is 2785409801. The reversal of 2785409772 is 2779045872.

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 15 ways as a sum of consecutive naturals, for example, 412947 + ... + 419637.

It is an arithmetic number, because the mean of its divisors is an integer number (137065544).

Almost surely, 2^2785409772 is an apocalyptic number.

It is an amenable number.

2785409772 is an abundant number, since it is smaller than the sum of its proper divisors (3793736340).

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

2785409772 is a wasteful number, since it uses less digits than its factorization.

2785409772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7118 (or 7116 counting only the distinct ones).

The product of its (nonzero) digits is 1975680, while the sum is 51.

The square root of 2785409772 is about 52776.9814597235. The cubic root of 2785409772 is about 1407.0073462134.

The spelling of 2785409772 in words is "two billion, seven hundred eighty-five million, four hundred nine thousand, seven hundred seventy-two".