18574448745 has 8 divisors (see below), whose sum is σ = 29719118016. Its totient is φ = 9906372656.

The previous prime is 18574448647. The next prime is 18574448771. The reversal of 18574448745 is 54784447581.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18574448745 - 2¹³ = 18574440553 is a prime.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 619148277 + ... + 619148306.

It is an arithmetic number, because the mean of its divisors is an integer number (3714889752).

Almost surely, 2^18574448745 is an apocalyptic number.

18574448745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18574448745 is a deficient number, since it is larger than the sum of its proper divisors (11144669271).

18574448745 is a wasteful number, since it uses less digits than its factorization.

18574448745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238296591.

The product of its digits is 20070400, while the sum is 57.

The spelling of 18574448745 in words is "eighteen billion, five hundred seventy-four million, four hundred forty-eight thousand, seven hundred forty-five".