18443248727044 has 96 divisors (see below), whose sum is σ = 35609200220160. Its totient is φ = 8333335987200.

The previous prime is 18443248727011. The next prime is 18443248727047. The reversal of 18443248727044 is 44072784234481.

It is a super-2 number, since 2×18443248727044² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a self number, because there is not a number n which added to its sum of digits gives 18443248727044.

It is not an unprimeable number, because it can be changed into a prime (18443248727047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21804664 + ... + 22634704.

It is an arithmetic number, because the mean of its divisors is an integer number (370929168960).

Almost surely, 2^{18443248727044} is an apocalyptic number.

It is an amenable number.

18443248727044 is a deficient number, since it is larger than the sum of its proper divisors (17165951493116).

18443248727044 is a wasteful number, since it uses less digits than its factorization.

18443248727044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830309 (or 830307 counting only the distinct ones).

The product of its (nonzero) digits is 38535168, while the sum is 58.

The spelling of 18443248727044 in words is "eighteen trillion, four hundred forty-three billion, two hundred forty-eight million, seven hundred twenty-seven thousand, forty-four".