12257688868980 has 96 divisors (see below), whose sum is σ = 36154474796160. Its totient is φ = 3094403604480.

The previous prime is 12257688868933. The next prime is 12257688869009. The reversal of 12257688868980 is 8986888675221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12257688868896 and 12257688868905.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 2398629 + ... + 5501708.

It is an arithmetic number, because the mean of its divisors is an integer number (376609112460).

Almost surely, 2^{12257688868980} is an apocalyptic number.

12257688868980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12257688868980 is an abundant number, since it is smaller than the sum of its proper divisors (23896785927180).

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

12257688868980 is a wasteful number, since it uses less digits than its factorization.

12257688868980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7901729 (or 7901727 counting only the distinct ones).

The product of its (nonzero) digits is 1486356480, while the sum is 78.

The spelling of 12257688868980 in words is "twelve trillion, two hundred fifty-seven billion, six hundred eighty-eight million, eight hundred sixty-eight thousand, nine hundred eighty".