18703545839 has 12 divisors (see below), whose sum is σ = 20564092920. Its totient is φ = 16998550800.

The previous prime is 18703545811. The next prime is 18703545841. The reversal of 18703545839 is 93854530781.

It is not a de Polignac number, because 18703545839 - 2²⁸ = 18435110383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18703541839) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 467069 + ... + 505529.

It is an arithmetic number, because the mean of its divisors is an integer number (1713674410).

Almost surely, 2^18703545839 is an apocalyptic number.

18703545839 is a deficient number, since it is larger than the sum of its proper divisors (1860547081).

18703545839 is a wasteful number, since it uses less digits than its factorization.

18703545839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42502 (or 42491 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 53.

The spelling of 18703545839 in words is "eighteen billion, seven hundred three million, five hundred forty-five thousand, eight hundred thirty-nine".