18204929952 has 192 divisors, whose sum is σ = 56154954240. Its totient is φ = 5104512000.

The previous prime is 18204929947. The next prime is 18204929983. The reversal of 18204929952 is 25992940281.

It is a junction number, because it is equal to n+sod(n) for n = 18204929895 and 18204929904.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 852202 + ... + 873302.

It is an arithmetic number, because the mean of its divisors is an integer number (292473720).

Almost surely, 2^18204929952 is an apocalyptic number.

18204929952 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 18204929952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28077477120).

18204929952 is an abundant number, since it is smaller than the sum of its proper divisors (37950024288).

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

18204929952 is a wasteful number, since it uses less digits than its factorization.

18204929952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21187 (or 21179 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 51.

The spelling of 18204929952 in words is "eighteen billion, two hundred four million, nine hundred twenty-nine thousand, nine hundred fifty-two".