27782587020 has 24 divisors (see below), whose sum is σ = 77791243824. Its totient is φ = 7408689856.

The previous prime is 27782587013. The next prime is 27782587039. The reversal of 27782587020 is 2078528772.

It is a super-3 number, since 3×27782587020³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231521499 + ... + 231521618.

It is an arithmetic number, because the mean of its divisors is an integer number (3241301826).

Almost surely, 2^27782587020 is an apocalyptic number.

27782587020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27782587020 is an abundant number, since it is smaller than the sum of its proper divisors (50008656804).

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

27782587020 is a wasteful number, since it uses less digits than its factorization.

27782587020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463043129 (or 463043127 counting only the distinct ones).

The product of its (nonzero) digits is 878080, while the sum is 48.

The spelling of 27782587020 in words is "twenty-seven billion, seven hundred eighty-two million, five hundred eighty-seven thousand, twenty".