27859989124 has 18 divisors (see below), whose sum is σ = 53590186622. Its totient is φ = 12663631200.

The previous prime is 27859989121. The next prime is 27859989127. The reversal of 27859989124 is 42198995872.

It is an interprime number because it is at equal distance from previous prime (27859989121) and next prime (27859989127).

It can be written as a sum of positive squares in only one way, i.e., 25230145600 + 2629843524 = 158840^2 + 51282^2 .

It is not an unprimeable number, because it can be changed into a prime (27859989121) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 28780497 + ... + 28781464.

Almost surely, 2^27859989124 is an apocalyptic number.

It is an amenable number.

27859989124 is a deficient number, since it is larger than the sum of its proper divisors (25730197498).

27859989124 is a wasteful number, since it uses less digits than its factorization.

27859989124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57561987 (or 57561974 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 64.

The spelling of 27859989124 in words is "twenty-seven billion, eight hundred fifty-nine million, nine hundred eighty-nine thousand, one hundred twenty-four".