18112429439 has 16 divisors (see below), whose sum is σ = 19600745472. Its totient is φ = 16637834208.

The previous prime is 18112429429. The next prime is 18112429463. The reversal of 18112429439 is 93492421181.

It is a cyclic number.

It is not a de Polignac number, because 18112429439 - 2³² = 13817462143 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18112429439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18112429409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4056122 + ... + 4060584.

It is an arithmetic number, because the mean of its divisors is an integer number (1225046592).

Almost surely, 2^18112429439 is an apocalyptic number.

18112429439 is a deficient number, since it is larger than the sum of its proper divisors (1488316033).

18112429439 is a wasteful number, since it uses less digits than its factorization.

18112429439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5926.

The product of its digits is 124416, while the sum is 44.

The spelling of 18112429439 in words is "eighteen billion, one hundred twelve million, four hundred twenty-nine thousand, four hundred thirty-nine".