27550231838 has 32 divisors (see below), whose sum is σ = 45266601600. Its totient is φ = 12530530656.

The previous prime is 27550231831. The next prime is 27550231853. The reversal of 27550231838 is 83813205572.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27550231831) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 46481 + ... + 239292.

It is an arithmetic number, because the mean of its divisors is an integer number (1414581300).

Almost surely, 2^27550231838 is an apocalyptic number.

27550231838 is a deficient number, since it is larger than the sum of its proper divisors (17716369762).

27550231838 is a wasteful number, since it uses less digits than its factorization.

27550231838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285896.

The product of its (nonzero) digits is 403200, while the sum is 44.

The spelling of 27550231838 in words is "twenty-seven billion, five hundred fifty million, two hundred thirty-one thousand, eight hundred thirty-eight".