2785891632 has 40 divisors (see below), whose sum is σ = 7429048320. Its totient is φ = 898674240.

The previous prime is 2785891631. The next prime is 2785891637. The reversal of 2785891632 is 2361985872.

It is a super-2 number, since 2×2785891632² = 15522384370495246848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2785891631) 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 7 ways as a sum of consecutive naturals, for example, 934632 + ... + 937607.

It is an arithmetic number, because the mean of its divisors is an integer number (185726208).

Almost surely, 2^2785891632 is an apocalyptic number.

It is an amenable number.

2785891632 is an abundant number, since it is smaller than the sum of its proper divisors (4643156688).

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

2785891632 is a wasteful number, since it uses less digits than its factorization.

2785891632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1872281 (or 1872275 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 51.

The square root of 2785891632 is about 52781.5463206602. The cubic root of 2785891632 is about 1407.0884762833.

The spelling of 2785891632 in words is "two billion, seven hundred eighty-five million, eight hundred ninety-one thousand, six hundred thirty-two".