27222079808 has 112 divisors (see below), whose sum is σ = 67630535808. Its totient is φ = 10561536000.

The previous prime is 27222079777. The next prime is 27222079837. The reversal of 27222079808 is 80897022272.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1176188 + ... + 1199108.

Almost surely, 2^27222079808 is an apocalyptic number.

27222079808 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27222079808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33815267904).

27222079808 is an abundant number, since it is smaller than the sum of its proper divisors (40408456000).

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

27222079808 is a wasteful number, since it uses less digits than its factorization.

27222079808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23192 (or 23182 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 47.

The spelling of 27222079808 in words is "twenty-seven billion, two hundred twenty-two million, seventy-nine thousand, eight hundred eight".