27422578198 has 16 divisors (see below), whose sum is σ = 41460154560. Its totient is φ = 13602589000.

The previous prime is 27422578189. The next prime is 27422578289. The reversal of 27422578198 is 89187522472.

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, 995373 + ... + 1022551.

It is an arithmetic number, because the mean of its divisors is an integer number (2591259660).

Almost surely, 2^27422578198 is an apocalyptic number.

27422578198 is a deficient number, since it is larger than the sum of its proper divisors (14037576362).

27422578198 is a wasteful number, since it uses less digits than its factorization.

27422578198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31163.

The product of its digits is 4515840, while the sum is 55.

The spelling of 27422578198 in words is "twenty-seven billion, four hundred twenty-two million, five hundred seventy-eight thousand, one hundred ninety-eight".