27298745644 has 12 divisors (see below), whose sum is σ = 47782504224. Its totient is φ = 13646601584.

The previous prime is 27298745623. The next prime is 27298745687. The reversal of 27298745644 is 44654789272.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 670567 + ... + 710110.

It is an arithmetic number, because the mean of its divisors is an integer number (3981875352).

Almost surely, 2^27298745644 is an apocalyptic number.

It is an amenable number.

27298745644 is a deficient number, since it is larger than the sum of its proper divisors (20483758580).

27298745644 is a wasteful number, since it uses less digits than its factorization.

27298745644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385624 (or 1385622 counting only the distinct ones).

The product of its digits is 27095040, while the sum is 58.

The spelling of 27298745644 in words is "twenty-seven billion, two hundred ninety-eight million, seven hundred forty-five thousand, six hundred forty-four".