27397563044 has 24 divisors (see below), whose sum is σ = 48330216480. Its totient is φ = 13589073216.

The previous prime is 27397563041. The next prime is 27397563071. The reversal of 27397563044 is 44036579372.

It is a junction number, because it is equal to n+sod(n) for n = 27397562983 and 27397563001.

It is not an unprimeable number, because it can be changed into a prime (27397563041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 782399 + ... + 816665.

It is an arithmetic number, because the mean of its divisors is an integer number (2013759020).

Almost surely, 2^27397563044 is an apocalyptic number.

It is an amenable number.

27397563044 is a deficient number, since it is larger than the sum of its proper divisors (20932653436).

27397563044 is a wasteful number, since it uses less digits than its factorization.

27397563044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35867 (or 35865 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 50.

The spelling of 27397563044 in words is "twenty-seven billion, three hundred ninety-seven million, five hundred sixty-three thousand, forty-four".