27898661854227 has 16 divisors (see below), whose sum is σ = 39606381613440. Its totient is φ = 17407249191552.

The previous prime is 27898661854171. The next prime is 27898661854249. The reversal of 27898661854227 is 72245816689872.

It is not a de Polignac number, because 27898661854227 - 2⁶ = 27898661854163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27898661852227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1528014853 + ... + 1528033110.

It is an arithmetic number, because the mean of its divisors is an integer number (2475398850840).

Almost surely, 2^{27898661854227} is an apocalyptic number.

27898661854227 is a deficient number, since it is larger than the sum of its proper divisors (11707719759213).

27898661854227 is a wasteful number, since it uses less digits than its factorization.

27898661854227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3056048162.

The product of its digits is 1300561920, while the sum is 75.

The spelling of 27898661854227 in words is "twenty-seven trillion, eight hundred ninety-eight billion, six hundred sixty-one million, eight hundred fifty-four thousand, two hundred twenty-seven".