27171022848 has 96 divisors (see below), whose sum is σ = 74775617280. Its totient is φ = 8764784640.

The previous prime is 27171022831. The next prime is 27171022859. The reversal of 27171022848 is 84822017172.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×27171022848² (a number of 22 digits) contains 22 as substring.

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, 119136 + ... + 261792.

It is an arithmetic number, because the mean of its divisors is an integer number (778912680).

Almost surely, 2^27171022848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27171022848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37387808640).

27171022848 is an abundant number, since it is smaller than the sum of its proper divisors (47604594432).

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

27171022848 is a wasteful number, since it uses less digits than its factorization.

27171022848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142713 (or 142693 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 42.

The spelling of 27171022848 in words is "twenty-seven billion, one hundred seventy-one million, twenty-two thousand, eight hundred forty-eight".