18407730343 has 8 divisors (see below), whose sum is σ = 19118107136. Its totient is φ = 17704639800.

The previous prime is 18407730317. The next prime is 18407730361. The reversal of 18407730343 is 34303770481.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18407730343 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18407730296 and 18407730305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18407730743) 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, 1816413 + ... + 1826518.

It is an arithmetic number, because the mean of its divisors is an integer number (2389763392).

Almost surely, 2^18407730343 is an apocalyptic number.

18407730343 is a deficient number, since it is larger than the sum of its proper divisors (710376793).

18407730343 is a wasteful number, since it uses less digits than its factorization.

18407730343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3643125.

The product of its (nonzero) digits is 169344, while the sum is 40.

The spelling of 18407730343 in words is "eighteen billion, four hundred seven million, seven hundred thirty thousand, three hundred forty-three".