18849269744 has 20 divisors (see below), whose sum is σ = 36548189040. Its totient is φ = 9417479040.

The previous prime is 18849269743. The next prime is 18849269863. The reversal of 18849269744 is 44796294881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18849269743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425477 + ... + 467684.

It is an arithmetic number, because the mean of its divisors is an integer number (1827409452).

Almost surely, 2^18849269744 is an apocalyptic number.

It is an amenable number.

18849269744 is a deficient number, since it is larger than the sum of its proper divisors (17698919296).

18849269744 is a wasteful number, since it uses less digits than its factorization.

18849269744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894488 (or 894482 counting only the distinct ones).

The product of its digits is 27869184, while the sum is 62.

The spelling of 18849269744 in words is "eighteen billion, eight hundred forty-nine million, two hundred sixty-nine thousand, seven hundred forty-four".