18007423435 has 16 divisors (see below), whose sum is σ = 21754353600. Its totient is φ = 14309222400.

The previous prime is 18007423411. The next prime is 18007423457. The reversal of 18007423435 is 53432470081.

It is a happy number.

It is not a de Polignac number, because 18007423435 - 2⁷ = 18007423307 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18007423394 and 18007423403.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 582939 + ... + 613051.

It is an arithmetic number, because the mean of its divisors is an integer number (1359647100).

Almost surely, 2^18007423435 is an apocalyptic number.

18007423435 is a deficient number, since it is larger than the sum of its proper divisors (3746930165).

18007423435 is a wasteful number, since it uses less digits than its factorization.

18007423435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30918.

The product of its (nonzero) digits is 80640, while the sum is 37.

The spelling of 18007423435 in words is "eighteen billion, seven million, four hundred twenty-three thousand, four hundred thirty-five".