2785664432 has 20 divisors (see below), whose sum is σ = 5512060896. Its totient is φ = 1363197120.

The previous prime is 2785664419. The next prime is 2785664437. The reversal of 2785664432 is 2344665872.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is not an unprimeable number, because it can be changed into a prime (2785664437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1851419 + ... + 1852922.

Almost surely, 2^2785664432 is an apocalyptic number.

It is an amenable number.

2785664432 is a deficient number, since it is larger than the sum of its proper divisors (2726396464).

2785664432 is a wasteful number, since it uses less digits than its factorization.

2785664432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3704396 (or 3704390 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 47.

The square root of 2785664432 is about 52779.3940094048. The cubic root of 2785664432 is about 1407.0502241142.

The spelling of 2785664432 in words is "two billion, seven hundred eighty-five million, six hundred sixty-four thousand, four hundred thirty-two".