27819116198 has 16 divisors (see below), whose sum is σ = 42428136960. Its totient is φ = 13677438600.

The previous prime is 27819116173. The next prime is 27819116207. The reversal of 27819116198 is 89161191872.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204638 + ... + 312273.

It is an arithmetic number, because the mean of its divisors is an integer number (2651758560).

Almost surely, 2^27819116198 is an apocalyptic number.

27819116198 is a deficient number, since it is larger than the sum of its proper divisors (14609020762).

27819116198 is a wasteful number, since it uses less digits than its factorization.

27819116198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517363.

The product of its digits is 435456, while the sum is 53.

The spelling of 27819116198 in words is "twenty-seven billion, eight hundred nineteen million, one hundred sixteen thousand, one hundred ninety-eight".