12900636112 has 320 divisors, whose sum is σ = 34220032000. Its totient is φ = 4663733760.

The previous prime is 12900636079. The next prime is 12900636127. The reversal of 12900636112 is 21163600921.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 42021463 + ... + 42021769.

It is an arithmetic number, because the mean of its divisors is an integer number (106937600).

Almost surely, 2^12900636112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12900636112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17110016000).

12900636112 is an abundant number, since it is smaller than the sum of its proper divisors (21319395888).

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

12900636112 is a wasteful number, since it uses less digits than its factorization.

12900636112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399 (or 379 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The spelling of 12900636112 in words is "twelve billion, nine hundred million, six hundred thirty-six thousand, one hundred twelve".