18529433952 has 24 divisors (see below), whose sum is σ = 48639764376. Its totient is φ = 6176477952.

The previous prime is 18529433939. The next prime is 18529434017. The reversal of 18529433952 is 25933492581.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 18529433895 and 18529433904.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96507373 + ... + 96507564.

It is an arithmetic number, because the mean of its divisors is an integer number (2026656849).

Almost surely, 2^18529433952 is an apocalyptic number.

18529433952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18529433952 is an abundant number, since it is smaller than the sum of its proper divisors (30110330424).

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

18529433952 is a wasteful number, since it uses less digits than its factorization.

18529433952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193014950 (or 193014942 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 51.

The spelling of 18529433952 in words is "eighteen billion, five hundred twenty-nine million, four hundred thirty-three thousand, nine hundred fifty-two".