27444386771172 has 72 divisors (see below), whose sum is σ = 80779704497856. Its totient is φ = 7693305182784.

The previous prime is 27444386771147. The next prime is 27444386771233. The reversal of 27444386771172 is 27117768344472.

27444386771172 is a `hidden beast` number, since 2 + 7 + 4 + 4 + 438 + 67 + 71 + 1 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1027404538 + ... + 1027431249.

It is an arithmetic number, because the mean of its divisors is an integer number (1121940340248).

Almost surely, 2^{27444386771172} is an apocalyptic number.

It is an amenable number.

27444386771172 is an abundant number, since it is smaller than the sum of its proper divisors (53335317726684).

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

27444386771172 is a wasteful number, since it uses less digits than its factorization.

27444386771172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2054835857 (or 2054835852 counting only the distinct ones).

The product of its digits is 88510464, while the sum is 63.

The spelling of 27444386771172 in words is "twenty-seven trillion, four hundred forty-four billion, three hundred eighty-six million, seven hundred seventy-one thousand, one hundred seventy-two".