18425052432 has 60 divisors (see below), whose sum is σ = 51642833164. Its totient is φ = 6132360960.

The previous prime is 18425052409. The next prime is 18425052439. The reversal of 18425052432 is 23425052481.

18425052432 is a `hidden beast` number, since 1 + 84 + 2 + 50 + 524 + 3 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 15446512656 + 2978539776 = 124284^2 + 54576^2 .

It is a super-2 number, since 2×18425052432² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (18425052439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1603 + ... + 191970.

Almost surely, 2^18425052432 is an apocalyptic number.

18425052432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18425052432 is an abundant number, since it is smaller than the sum of its proper divisors (33217780732).

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

18425052432 is a wasteful number, since it uses less digits than its factorization.

18425052432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194248 (or 194239 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The spelling of 18425052432 in words is "eighteen billion, four hundred twenty-five million, fifty-two thousand, four hundred thirty-two".