27782631844 has 24 divisors (see below), whose sum is σ = 53070077088. Its totient is φ = 12621205440.

The previous prime is 27782631827. The next prime is 27782631889. The reversal of 27782631844 is 44813628772.

It is a junction number, because it is equal to n+sod(n) for n = 27782631791 and 27782631800.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103849 + ... + 257584.

It is an arithmetic number, because the mean of its divisors is an integer number (2211253212).

Almost surely, 2^27782631844 is an apocalyptic number.

It is an amenable number.

27782631844 is a deficient number, since it is larger than the sum of its proper divisors (25287445244).

27782631844 is a wasteful number, since it uses less digits than its factorization.

27782631844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363195 (or 363193 counting only the distinct ones).

The product of its digits is 3612672, while the sum is 52.

The spelling of 27782631844 in words is "twenty-seven billion, seven hundred eighty-two million, six hundred thirty-one thousand, eight hundred forty-four".