18242823385 has 16 divisors (see below), whose sum is σ = 22216803840. Its totient is φ = 14378120640.

The previous prime is 18242823383. The next prime is 18242823407. The reversal of 18242823385 is 58332824281.

It is not a de Polignac number, because 18242823385 - 2¹ = 18242823383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18242823383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132004 + ... + 232186.

It is an arithmetic number, because the mean of its divisors is an integer number (1388550240).

Almost surely, 2^18242823385 is an apocalyptic number.

It is an amenable number.

18242823385 is a deficient number, since it is larger than the sum of its proper divisors (3973980455).

18242823385 is a wasteful number, since it uses less digits than its factorization.

18242823385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100728.

The product of its digits is 737280, while the sum is 46.

The spelling of 18242823385 in words is "eighteen billion, two hundred forty-two million, eight hundred twenty-three thousand, three hundred eighty-five".