18853670139 has 8 divisors (see below), whose sum is σ = 25264550400. Its totient is φ = 12505951656.

The previous prime is 18853670131. The next prime is 18853670149. The reversal of 18853670139 is 93107635881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18853670139 - 2³ = 18853670131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18853670091 and 18853670100.

It is not an unprimeable number, because it can be changed into a prime (18853670131) 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, 15789747 + ... + 15790940.

It is an arithmetic number, because the mean of its divisors is an integer number (3158068800).

Almost surely, 2^18853670139 is an apocalyptic number.

18853670139 is a deficient number, since it is larger than the sum of its proper divisors (6410880261).

18853670139 is a wasteful number, since it uses less digits than its factorization.

18853670139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31580889.

The product of its (nonzero) digits is 1088640, while the sum is 51.

The spelling of 18853670139 in words is "eighteen billion, eight hundred fifty-three million, six hundred seventy thousand, one hundred thirty-nine".