12829187500 has 42 divisors (see below), whose sum is σ = 28063625156. Its totient is φ = 5131650000.

The previous prime is 12829187443. The next prime is 12829187519. The reversal of 12829187500 is 578192821.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 40134 + ... + 165133.

Almost surely, 2^12829187500 is an apocalyptic number.

12829187500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12829187500 is an abundant number, since it is smaller than the sum of its proper divisors (15234437656).

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

12829187500 is an frugal number, since it uses more digits than its factorization.

12829187500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205301 (or 205274 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 43.

The spelling of 12829187500 in words is "twelve billion, eight hundred twenty-nine million, one hundred eighty-seven thousand, five hundred".