18157414382 has 4 divisors (see below), whose sum is σ = 27236121576. Its totient is φ = 9078707190.

The previous prime is 18157414381. The next prime is 18157414403. The reversal of 18157414382 is 28341475181.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18157414381) by changing a digit.

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 as a sum of consecutive naturals, namely, 4539353594 + ... + 4539353597.

It is an arithmetic number, because the mean of its divisors is an integer number (6809030394).

Almost surely, 2^18157414382 is an apocalyptic number.

18157414382 is a deficient number, since it is larger than the sum of its proper divisors (9078707194).

18157414382 is an equidigital number, since it uses as much as digits as its factorization.

18157414382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9078707193.

The product of its digits is 215040, while the sum is 44.

The spelling of 18157414382 in words is "eighteen billion, one hundred fifty-seven million, four hundred fourteen thousand, three hundred eighty-two".