18032470867 has 4 divisors (see below), whose sum is σ = 18050668096. Its totient is φ = 18014273640.

The previous prime is 18032470861. The next prime is 18032470901. The reversal of 18032470867 is 76807423081.

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

It is a cyclic number.

It is not a de Polignac number, because 18032470867 - 2⁷ = 18032470739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18032470861) 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, 9097128 + ... + 9099109.

It is an arithmetic number, because the mean of its divisors is an integer number (4512667024).

Almost surely, 2^18032470867 is an apocalyptic number.

18032470867 is a deficient number, since it is larger than the sum of its proper divisors (18197229).

18032470867 is an equidigital number, since it uses as much as digits as its factorization.

18032470867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18197228.

The product of its (nonzero) digits is 451584, while the sum is 46.

The spelling of 18032470867 in words is "eighteen billion, thirty-two million, four hundred seventy thousand, eight hundred sixty-seven".