18529602472 has 32 divisors (see below), whose sum is σ = 37973387520. Its totient is φ = 8438526720.

The previous prime is 18529602409. The next prime is 18529602491. The reversal of 18529602472 is 27420692581.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2193318 + ... + 2201749.

It is an arithmetic number, because the mean of its divisors is an integer number (1186668360).

Almost surely, 2^18529602472 is an apocalyptic number.

It is an amenable number.

18529602472 is an abundant number, since it is smaller than the sum of its proper divisors (19443785048).

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

18529602472 is a wasteful number, since it uses less digits than its factorization.

18529602472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4395121 (or 4395117 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 18529602472 in words is "eighteen billion, five hundred twenty-nine million, six hundred two thousand, four hundred seventy-two".