12900885312 has 112 divisors (see below), whose sum is σ = 40064293760. Its totient is φ = 3586332672.

The previous prime is 12900885269. The next prime is 12900885313. The reversal of 12900885312 is 21358800921.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12900885313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79987 + ... + 179442.

Almost surely, 2^12900885312 is an apocalyptic number.

12900885312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12900885312 is an abundant number, since it is smaller than the sum of its proper divisors (27163408448).

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

12900885312 is a wasteful number, since it uses less digits than its factorization.

12900885312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259488 (or 259478 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The spelling of 12900885312 in words is "twelve billion, nine hundred million, eight hundred eighty-five thousand, three hundred twelve".