27731331044 has 12 divisors (see below), whose sum is σ = 48551009724. Its totient is φ = 13859613984.

The previous prime is 27731330959. The next prime is 27731331071. The reversal of 27731331044 is 44013313772.

It can be written as a sum of positive squares in 2 ways, for example, as 9194508544 + 18536822500 = 95888^2 + 136150^2 .

It is a junction number, because it is equal to n+sod(n) for n = 27731330995 and 27731331013.

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 3 ways as a sum of consecutive naturals, for example, 1502567 + ... + 1520910.

It is an arithmetic number, because the mean of its divisors is an integer number (4045917477).

Almost surely, 2^27731331044 is an apocalyptic number.

It is an amenable number.

27731331044 is a deficient number, since it is larger than the sum of its proper divisors (20819678680).

27731331044 is a wasteful number, since it uses less digits than its factorization.

27731331044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3025774 (or 3025772 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 35.

The spelling of 27731331044 in words is "twenty-seven billion, seven hundred thirty-one million, three hundred thirty-one thousand, forty-four".