18075801447 has 12 divisors (see below), whose sum is σ = 28483081224. Its totient is φ = 10955031120.

The previous prime is 18075801433. The next prime is 18075801479. The reversal of 18075801447 is 74410857081.

18075801447 is a `hidden beast` number, since 18 + 0 + 7 + 580 + 14 + 47 = 666.

It is not a de Polignac number, because 18075801447 - 2³⁰ = 17002059623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18075801547) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91291828 + ... + 91292025.

It is an arithmetic number, because the mean of its divisors is an integer number (2373590102).

Almost surely, 2^18075801447 is an apocalyptic number.

18075801447 is a deficient number, since it is larger than the sum of its proper divisors (10407279777).

18075801447 is a wasteful number, since it uses less digits than its factorization.

18075801447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182583870 (or 182583867 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 45.

The spelling of 18075801447 in words is "eighteen billion, seventy-five million, eight hundred one thousand, four hundred forty-seven".