18426567139 has 16 divisors (see below), whose sum is σ = 19508719104. Its totient is φ = 17368912000.

The previous prime is 18426567127. The next prime is 18426567149. The reversal of 18426567139 is 93176562481.

It is not a de Polignac number, because 18426567139 - 2²³ = 18418178531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18426567149) 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 15 ways as a sum of consecutive naturals, for example, 753474 + ... + 777544.

It is an arithmetic number, because the mean of its divisors is an integer number (1219294944).

Almost surely, 2^18426567139 is an apocalyptic number.

18426567139 is a deficient number, since it is larger than the sum of its proper divisors (1082151965).

18426567139 is a wasteful number, since it uses less digits than its factorization.

18426567139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24578.

The product of its digits is 2177280, while the sum is 52.

The spelling of 18426567139 in words is "eighteen billion, four hundred twenty-six million, five hundred sixty-seven thousand, one hundred thirty-nine".