27749518946 has 16 divisors (see below), whose sum is σ = 41695641600. Its totient is φ = 13850993520.

The previous prime is 27749518933. The next prime is 27749518949. The reversal of 27749518946 is 64981594772.

It is not an unprimeable number, because it can be changed into a prime (27749518949) 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, 3383711 + ... + 3391901.

It is an arithmetic number, because the mean of its divisors is an integer number (2605977600).

Almost surely, 2^27749518946 is an apocalyptic number.

27749518946 is a deficient number, since it is larger than the sum of its proper divisors (13946122654).

27749518946 is a wasteful number, since it uses less digits than its factorization.

27749518946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10889.

The product of its digits is 30481920, while the sum is 62.

The spelling of 27749518946 in words is "twenty-seven billion, seven hundred forty-nine million, five hundred eighteen thousand, nine hundred forty-six".