12885819906980 has 24 divisors (see below), whose sum is σ = 27073758768000. Its totient is φ = 5151749493600.

The previous prime is 12885819906977. The next prime is 12885819906989. The reversal of 12885819906980 is 8960991858821.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12885819906898 and 12885819906907.

It is not an unprimeable number, because it can be changed into a prime (12885819906989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161113346 + ... + 161193305.

It is an arithmetic number, because the mean of its divisors is an integer number (1128073282000).

Almost surely, 2^{12885819906980} is an apocalyptic number.

12885819906980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12885819906980 is an abundant number, since it is smaller than the sum of its proper divisors (14187938861020).

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

12885819906980 is a wasteful number, since it uses less digits than its factorization.

12885819906980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322308659 (or 322308657 counting only the distinct ones).

The product of its (nonzero) digits is 179159040, while the sum is 74.

The spelling of 12885819906980 in words is "twelve trillion, eight hundred eighty-five billion, eight hundred nineteen million, nine hundred six thousand, nine hundred eighty".