18382354737 has 4 divisors (see below), whose sum is σ = 24509806320. Its totient is φ = 12254903156.

The previous prime is 18382354709. The next prime is 18382354741. The reversal of 18382354737 is 73745328381.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18382354737 - 2¹⁰ = 18382353713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18382354737.

It is not an unprimeable number, because it can be changed into a prime (18382354537) 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 in 3 ways as a sum of consecutive naturals, for example, 3063725787 + ... + 3063725792.

It is an arithmetic number, because the mean of its divisors is an integer number (6127451580).

Almost surely, 2^18382354737 is an apocalyptic number.

It is an amenable number.

18382354737 is a deficient number, since it is larger than the sum of its proper divisors (6127451583).

18382354737 is an equidigital number, since it uses as much as digits as its factorization.

18382354737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6127451582.

The product of its digits is 3386880, while the sum is 51.

The spelling of 18382354737 in words is "eighteen billion, three hundred eighty-two million, three hundred fifty-four thousand, seven hundred thirty-seven".