18250891448 has 16 divisors (see below), whose sum is σ = 35016245880. Its totient is φ = 8913225888.

The previous prime is 18250891447. The next prime is 18250891471. The reversal of 18250891448 is 84419805281.

It is a junction number, because it is equal to n+sod(n) for n = 18250891396 and 18250891405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18250891441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26527115 + ... + 26527802.

Almost surely, 2^18250891448 is an apocalyptic number.

It is an amenable number.

18250891448 is a deficient number, since it is larger than the sum of its proper divisors (16765354432).

18250891448 is a wasteful number, since it uses less digits than its factorization.

18250891448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53054966 (or 53054962 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 50.

The spelling of 18250891448 in words is "eighteen billion, two hundred fifty million, eight hundred ninety-one thousand, four hundred forty-eight".