18806869350 has 36 divisors (see below), whose sum is σ = 50527790196. Its totient is φ = 5015165040.

The previous prime is 18806869349. The next prime is 18806869357. The reversal of 18806869350 is 5396860881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18806869357) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 20896072 + ... + 20896971.

Almost surely, 2^18806869350 is an apocalyptic number.

18806869350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18806869350 is an abundant number, since it is smaller than the sum of its proper divisors (31720920846).

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

18806869350 is a wasteful number, since it uses less digits than its factorization.

18806869350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41793061 (or 41793053 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The spelling of 18806869350 in words is "eighteen billion, eight hundred six million, eight hundred sixty-nine thousand, three hundred fifty".