27195021444 has 24 divisors (see below), whose sum is σ = 63518723968. Its totient is φ = 9055910880.

The previous prime is 27195021443. The next prime is 27195021473. The reversal of 27195021444 is 44412059172.

It is not an unprimeable number, because it can be changed into a prime (27195021443) 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, 1124572 + ... + 1148499.

Almost surely, 2^27195021444 is an apocalyptic number.

It is an amenable number.

27195021444 is an abundant number, since it is smaller than the sum of its proper divisors (36323702524).

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

27195021444 is a wasteful number, since it uses less digits than its factorization.

27195021444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2274075 (or 2274073 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 27195021444 in words is "twenty-seven billion, one hundred ninety-five million, twenty-one thousand, four hundred forty-four".