18058404448 has 24 divisors (see below), whose sum is σ = 40631410512. Its totient is φ = 7739316096.

The previous prime is 18058404443. The next prime is 18058404451. The reversal of 18058404448 is 84440485081.

It is a super-2 number, since 2×18058404448² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18058404398 and 18058404407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18058404443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40308715 + ... + 40309162.

It is an arithmetic number, because the mean of its divisors is an integer number (1692975438).

Almost surely, 2^18058404448 is an apocalyptic number.

It is an amenable number.

18058404448 is an abundant number, since it is smaller than the sum of its proper divisors (22573006064).

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

18058404448 is an equidigital number, since it uses as much as digits as its factorization.

18058404448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80617894 (or 80617886 counting only the distinct ones).

The product of its (nonzero) digits is 655360, while the sum is 46.

The spelling of 18058404448 in words is "eighteen billion, fifty-eight million, four hundred four thousand, four hundred forty-eight".