18215824148 has 12 divisors (see below), whose sum is σ = 32400277812. Its totient is φ = 8958601920.

The previous prime is 18215824117. The next prime is 18215824181. The reversal of 18215824148 is 84142851281.

It can be written as a sum of positive squares in 2 ways, for example, as 1612986244 + 16602837904 = 40162^2 + 128852^2 .

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 18215824099 and 18215824108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37327265 + ... + 37327752.

It is an arithmetic number, because the mean of its divisors is an integer number (2700023151).

Almost surely, 2^18215824148 is an apocalyptic number.

It is an amenable number.

18215824148 is a deficient number, since it is larger than the sum of its proper divisors (14184453664).

18215824148 is a wasteful number, since it uses less digits than its factorization.

18215824148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74655082 (or 74655080 counting only the distinct ones).

The product of its digits is 163840, while the sum is 44.

The spelling of 18215824148 in words is "eighteen billion, two hundred fifteen million, eight hundred twenty-four thousand, one hundred forty-eight".