18448125040 has 20 divisors (see below), whose sum is σ = 42891890904. Its totient is φ = 7379249984.

The previous prime is 18448124987. The next prime is 18448125041. The reversal of 18448125040 is 4052184481.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18448125041) 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 3 ways as a sum of consecutive naturals, for example, 115300702 + ... + 115300861.

Almost surely, 2^18448125040 is an apocalyptic number.

18448125040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18448125040 is an abundant number, since it is smaller than the sum of its proper divisors (24443765864).

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

18448125040 is a wasteful number, since it uses less digits than its factorization.

18448125040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230601576 (or 230601570 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 37.

The spelling of 18448125040 in words is "eighteen billion, four hundred forty-eight million, one hundred twenty-five thousand, forty".