12305682887620 has 24 divisors (see below), whose sum is σ = 25842006149400. Its totient is φ = 4922259424512.

The previous prime is 12305682887611. The next prime is 12305682887621. The reversal of 12305682887620 is 2678828650321.

It can be written as a sum of positive squares in 4 ways, for example, as 4206797898304 + 8098884989316 = 2051048^2 + 2845854^2 .

It is not an unprimeable number, because it can be changed into a prime (12305682887621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9598666 + ... + 10804894.

It is an arithmetic number, because the mean of its divisors is an integer number (1076750256225).

Almost surely, 2^{12305682887620} is an apocalyptic number.

12305682887620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12305682887620 is an abundant number, since it is smaller than the sum of its proper divisors (13536323261780).

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

12305682887620 is a wasteful number, since it uses less digits than its factorization.

12305682887620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1716327 (or 1716325 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 58.

The spelling of 12305682887620 in words is "twelve trillion, three hundred five billion, six hundred eighty-two million, eight hundred eighty-seven thousand, six hundred twenty".