12500505227898 has 24 divisors (see below), whose sum is σ = 27488673190368. Its totient is φ = 4104643507272.

The previous prime is 12500505227887. The next prime is 12500505227911. The reversal of 12500505227898 is 89872250500521.

12500505227898 is a `hidden beast` number, since 1 + 2 + 50 + 0 + 505 + 2 + 2 + 7 + 89 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5182629486 + ... + 5182631897.

It is an arithmetic number, because the mean of its divisors is an integer number (1145361382932).

Almost surely, 2^{12500505227898} is an apocalyptic number.

12500505227898 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12500505227898 is an abundant number, since it is smaller than the sum of its proper divisors (14988167962470).

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

12500505227898 is a wasteful number, since it uses less digits than its factorization.

12500505227898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10365261458 (or 10365261455 counting only the distinct ones).

The product of its (nonzero) digits is 4032000, while the sum is 54.

The spelling of 12500505227898 in words is "twelve trillion, five hundred billion, five hundred five million, two hundred twenty-seven thousand, eight hundred ninety-eight".