27238944136 has 8 divisors (see below), whose sum is σ = 51073020270. Its totient is φ = 13619472064.

The previous prime is 27238944113. The next prime is 27238944149. The reversal of 27238944136 is 63144983272.

It can be written as a sum of positive squares in only one way, i.e., 24647116036 + 2591828100 = 156994^2 + 50910^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 27238944136.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1702434001 + ... + 1702434016.

Almost surely, 2^27238944136 is an apocalyptic number.

It is an amenable number.

27238944136 is a deficient number, since it is larger than the sum of its proper divisors (23834076134).

27238944136 is a wasteful number, since it uses less digits than its factorization.

27238944136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3404868023 (or 3404868019 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 49.

The spelling of 27238944136 in words is "twenty-seven billion, two hundred thirty-eight million, nine hundred forty-four thousand, one hundred thirty-six".