18870245119 has 12 divisors (see below), whose sum is σ = 21182992992. Its totient is φ = 16789768160.

The previous prime is 18870245081. The next prime is 18870245137. The reversal of 18870245119 is 91154207881.

It is not a de Polignac number, because 18870245119 - 2²⁹ = 18333374207 is a prime.

It is a super-2 number, since 2×18870245119² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18870245519) 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, 1653382 + ... + 1664755.

It is an arithmetic number, because the mean of its divisors is an integer number (1765249416).

Almost surely, 2^18870245119 is an apocalyptic number.

18870245119 is a deficient number, since it is larger than the sum of its proper divisors (2312747873).

18870245119 is a wasteful number, since it uses less digits than its factorization.

18870245119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3318206 (or 3318195 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 46.

The spelling of 18870245119 in words is "eighteen billion, eight hundred seventy million, two hundred forty-five thousand, one hundred nineteen".