27479193158 has 4 divisors (see below), whose sum is σ = 41218789740. Its totient is φ = 13739596578.

The previous prime is 27479193151. The next prime is 27479193221. The reversal of 27479193158 is 85139197472.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×27479193158² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27479193151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6869798288 + ... + 6869798291.

It is an arithmetic number, because the mean of its divisors is an integer number (10304697435).

Almost surely, 2^27479193158 is an apocalyptic number.

27479193158 is a deficient number, since it is larger than the sum of its proper divisors (13739596582).

27479193158 is a wasteful number, since it uses less digits than its factorization.

27479193158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13739596581.

The product of its digits is 3810240, while the sum is 56.

The spelling of 27479193158 in words is "twenty-seven billion, four hundred seventy-nine million, one hundred ninety-three thousand, one hundred fifty-eight".