18151312873 has 4 divisors (see below), whose sum is σ = 18203622480. Its totient is φ = 18099003268.

The previous prime is 18151312871. The next prime is 18151312877. The reversal of 18151312873 is 37821315181.

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 18151312873 - 2¹ = 18151312871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18151312871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26154283 + ... + 26154976.

It is an arithmetic number, because the mean of its divisors is an integer number (4550905620).

Almost surely, 2^18151312873 is an apocalyptic number.

It is an amenable number.

18151312873 is a deficient number, since it is larger than the sum of its proper divisors (52309607).

18151312873 is an equidigital number, since it uses as much as digits as its factorization.

18151312873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52309606.

The product of its digits is 40320, while the sum is 40.

The spelling of 18151312873 in words is "eighteen billion, one hundred fifty-one million, three hundred twelve thousand, eight hundred seventy-three".