18434535036 has 24 divisors (see below), whose sum is σ = 43169207760. Its totient is φ = 6122660352.

The previous prime is 18434535011. The next prime is 18434535043. The reversal of 18434535036 is 63053543481.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2769621 + ... + 2776268.

It is an arithmetic number, because the mean of its divisors is an integer number (1798716990).

Almost surely, 2^18434535036 is an apocalyptic number.

It is an amenable number.

18434535036 is an abundant number, since it is smaller than the sum of its proper divisors (24734672724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18434535036 is a wasteful number, since it uses less digits than its factorization.

18434535036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5546173 (or 5546171 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 18434535036 in words is "eighteen billion, four hundred thirty-four million, five hundred thirty-five thousand, thirty-six".