18103713019 has 12 divisors (see below), whose sum is σ = 22167813000. Its totient is φ = 14700758688.

The previous prime is 18103712969. The next prime is 18103713029. The reversal of 18103713019 is 91031730181.

It is not a de Polignac number, because 18103713019 - 2¹¹ = 18103710971 is a prime.

It is a super-2 number, since 2×18103713019² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18103713029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9721794 + ... + 9723655.

It is an arithmetic number, because the mean of its divisors is an integer number (1847317750).

Almost surely, 2^18103713019 is an apocalyptic number.

18103713019 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

18103713019 is a deficient number, since it is larger than the sum of its proper divisors (4064099981).

18103713019 is a wasteful number, since it uses less digits than its factorization.

18103713019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19445482 (or 19445475 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 34.

The spelling of 18103713019 in words is "eighteen billion, one hundred three million, seven hundred thirteen thousand, nineteen".