27555228192 has 144 divisors (see below), whose sum is σ = 80832118752. Its totient is φ = 8189614080.

The previous prime is 27555228191. The next prime is 27555228193. The reversal of 27555228192 is 29182255572.

It is an interprime number because it is at equal distance from previous prime (27555228191) and next prime (27555228193).

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (27555228191) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 565767 + ... + 612537.

It is an arithmetic number, because the mean of its divisors is an integer number (561334158).

Almost surely, 2^27555228192 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 27555228192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40416059376).

27555228192 is an abundant number, since it is smaller than the sum of its proper divisors (53276890560).

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

27555228192 is a wasteful number, since it uses less digits than its factorization.

27555228192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46839 (or 46812 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 48.

The spelling of 27555228192 in words is "twenty-seven billion, five hundred fifty-five million, two hundred twenty-eight thousand, one hundred ninety-two".