18375130785 has 24 divisors (see below), whose sum is σ = 32315935680. Its totient is φ = 8909153440.

The previous prime is 18375130783. The next prime is 18375130811. The reversal of 18375130785 is 58703157381.

It is not a de Polignac number, because 18375130785 - 2¹ = 18375130783 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18375130783) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5060205 + ... + 5063834.

It is an arithmetic number, because the mean of its divisors is an integer number (1346497320).

Almost surely, 2^18375130785 is an apocalyptic number.

18375130785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18375130785 is a deficient number, since it is larger than the sum of its proper divisors (13940804895).

18375130785 is a wasteful number, since it uses less digits than its factorization.

18375130785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10124069 (or 10124058 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 48.

The spelling of 18375130785 in words is "eighteen billion, three hundred seventy-five million, one hundred thirty thousand, seven hundred eighty-five".