18260446149 has 12 divisors (see below), whose sum is σ = 28774036512. Its totient is φ = 11066937000.

The previous prime is 18260446121. The next prime is 18260446159. The reversal of 18260446149 is 94164406281.

18260446149 is a `hidden beast` number, since 1 + 8 + 2 + 60 + 446 + 149 = 666.

It is not a de Polignac number, because 18260446149 - 2⁵ = 18260446117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18260446159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92224377 + ... + 92224574.

It is an arithmetic number, because the mean of its divisors is an integer number (2397836376).

Almost surely, 2^18260446149 is an apocalyptic number.

It is an amenable number.

18260446149 is a deficient number, since it is larger than the sum of its proper divisors (10513590363).

18260446149 is a wasteful number, since it uses less digits than its factorization.

18260446149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184448968 (or 184448965 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 18260446149 in words is "eighteen billion, two hundred sixty million, four hundred forty-six thousand, one hundred forty-nine".