18385725348 has 36 divisors (see below), whose sum is σ = 46498692240. Its totient is φ = 6125454576.

The previous prime is 18385725299. The next prime is 18385725353. The reversal of 18385725348 is 84352758381.

18385725348 is a `hidden beast` number, since 1 + 8 + 38 + 5 + 72 + 534 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×18385725348² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18385725294 and 18385725303.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57790 + ... + 200277.

It is an arithmetic number, because the mean of its divisors is an integer number (1291630340).

Almost surely, 2^18385725348 is an apocalyptic number.

18385725348 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18385725348 is an abundant number, since it is smaller than the sum of its proper divisors (28112966892).

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

18385725348 is a wasteful number, since it uses less digits than its factorization.

18385725348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260056 (or 260051 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 54.

The spelling of 18385725348 in words is "eighteen billion, three hundred eighty-five million, seven hundred twenty-five thousand, three hundred forty-eight".