27255109472 has 48 divisors (see below), whose sum is σ = 55315748880. Its totient is φ = 13212997632.

The previous prime is 27255109463. The next prime is 27255109477. The reversal of 27255109472 is 27490155272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27255109477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38948 + ... + 236700.

It is an arithmetic number, because the mean of its divisors is an integer number (1152411435).

Almost surely, 2^27255109472 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 27255109472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27657874440).

27255109472 is an abundant number, since it is smaller than the sum of its proper divisors (28060639408).

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

27255109472 is a wasteful number, since it uses less digits than its factorization.

27255109472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197895 (or 197887 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 44.

The spelling of 27255109472 in words is "twenty-seven billion, two hundred fifty-five million, one hundred nine thousand, four hundred seventy-two".