27997550058 has 16 divisors (see below), whose sum is σ = 56045604960. Its totient is φ = 9324099216.

The previous prime is 27997550051. The next prime is 27997550081. The reversal of 27997550058 is 85005579972.

It is not an unprimeable number, because it can be changed into a prime (27997550051) 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 7 ways as a sum of consecutive naturals, for example, 2097160 + ... + 2110467.

It is an arithmetic number, because the mean of its divisors is an integer number (3502850310).

Almost surely, 2^27997550058 is an apocalyptic number.

27997550058 is an abundant number, since it is smaller than the sum of its proper divisors (28048054902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27997550058 is a wasteful number, since it uses less digits than its factorization.

27997550058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4208741.

The product of its (nonzero) digits is 7938000, while the sum is 57.

It can be divided in two parts, 279975 and 50058, that added together give a palindrome (330033).

The spelling of 27997550058 in words is "twenty-seven billion, nine hundred ninety-seven million, five hundred fifty thousand, fifty-eight".