18865459248 has 40 divisors (see below), whose sum is σ = 48751457088. Its totient is φ = 6286462272.

The previous prime is 18865459241. The next prime is 18865459259. The reversal of 18865459248 is 84295456881.

It is a junction number, because it is equal to n+sod(n) for n = 18865459191 and 18865459200.

It is not an unprimeable number, because it can be changed into a prime (18865459241) 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 7 ways as a sum of consecutive naturals, for example, 91315 + ... + 214637.

Almost surely, 2^18865459248 is an apocalyptic number.

It is an amenable number.

18865459248 is an abundant number, since it is smaller than the sum of its proper divisors (29885997840).

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

18865459248 is a wasteful number, since it uses less digits than its factorization.

18865459248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126521 (or 126515 counting only the distinct ones).

The product of its digits is 22118400, while the sum is 60.

The spelling of 18865459248 in words is "eighteen billion, eight hundred sixty-five million, four hundred fifty-nine thousand, two hundred forty-eight".