2005779312 has 60 divisors (see below), whose sum is σ = 5616453024. Its totient is φ = 668229120.

The previous prime is 2005779283. The next prime is 2005779343. The reversal of 2005779312 is 2139775002.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 447193 + ... + 451655.

Almost surely, 2^2005779312 is an apocalyptic number.

It is an amenable number.

2005779312 is an abundant number, since it is smaller than the sum of its proper divisors (3610673712).

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

2005779312 is a wasteful number, since it uses less digits than its factorization.

2005779312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7598 (or 7589 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 2005779312 is about 44785.9276112486. The cubic root of 2005779312 is about 1261.1334622992.

The spelling of 2005779312 in words is "two billion, five million, seven hundred seventy-nine thousand, three hundred twelve".