18434149142 has 16 divisors (see below), whose sum is σ = 27876139200. Its totient is φ = 9142226760.

The previous prime is 18434149141. The next prime is 18434149147. The reversal of 18434149142 is 24194143481.

It is a self number, because there is not a number n which added to its sum of digits gives 18434149142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18434149141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272909 + ... + 333687.

It is an arithmetic number, because the mean of its divisors is an integer number (1742258700).

Almost surely, 2^18434149142 is an apocalyptic number.

18434149142 is a deficient number, since it is larger than the sum of its proper divisors (9441990058).

18434149142 is a wasteful number, since it uses less digits than its factorization.

18434149142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62011.

The product of its digits is 110592, while the sum is 41.

The spelling of 18434149142 in words is "eighteen billion, four hundred thirty-four million, one hundred forty-nine thousand, one hundred forty-two".