13817874345 has 32 divisors (see below), whose sum is σ = 24679378944. Its totient is φ = 6543768000.

The previous prime is 13817874319. The next prime is 13817874349. The reversal of 13817874345 is 54347871831.

It is not a de Polignac number, because 13817874345 - 2¹¹ = 13817872297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13817874349) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 966681 + ... + 980870.

It is an arithmetic number, because the mean of its divisors is an integer number (771230592).

Almost surely, 2^13817874345 is an apocalyptic number.

13817874345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13817874345 is a deficient number, since it is larger than the sum of its proper divisors (10861504599).

13817874345 is a wasteful number, since it uses less digits than its factorization.

13817874345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1947613.

The product of its digits is 2257920, while the sum is 51.

The spelling of 13817874345 in words is "thirteen billion, eight hundred seventeen million, eight hundred seventy-four thousand, three hundred forty-five".