18200030472 has 108 divisors (see below), whose sum is σ = 53418767805. Its totient is φ = 5595430464.

The previous prime is 18200030417. The next prime is 18200030473. The reversal of 18200030472 is 27403000281.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 15561564516 + 2638465956 = 124746^2 + 51366^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=95394.

It is a super-2 number, since 2×18200030472² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18200030473) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 14880853 + ... + 14882075.

Almost surely, 2^18200030472 is an apocalyptic number.

18200030472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18200030472

18200030472 is an abundant number, since it is smaller than the sum of its proper divisors (35218737333).

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

18200030472 is a wasteful number, since it uses less digits than its factorization.

18200030472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2484 (or 1241 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The spelling of 18200030472 in words is "eighteen billion, two hundred million, thirty thousand, four hundred seventy-two".