18290181448 has 64 divisors (see below), whose sum is σ = 44230665600. Its totient is φ = 6880312320.

The previous prime is 18290181409. The next prime is 18290181449. The reversal of 18290181448 is 84418109281.

It is a junction number, because it is equal to n+sod(n) for n = 18290181398 and 18290181407.

It is not an unprimeable number, because it can be changed into a prime (18290181449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 494065 + ... + 529792.

It is an arithmetic number, because the mean of its divisors is an integer number (691104150).

Almost surely, 2^18290181448 is an apocalyptic number.

It is an amenable number.

18290181448 is an abundant number, since it is smaller than the sum of its proper divisors (25940484152).

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

18290181448 is a wasteful number, since it uses less digits than its factorization.

18290181448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023910 (or 1023906 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 46.

The spelling of 18290181448 in words is "eighteen billion, two hundred ninety million, one hundred eighty-one thousand, four hundred forty-eight".