12985558992 has 360 divisors, whose sum is σ = 43727963136. Its totient is φ = 3584673792.

The previous prime is 12985558981. The next prime is 12985559009. The reversal of 12985558992 is 29985558921.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 38532648 + ... + 38532984.

Almost surely, 2^12985558992 is an apocalyptic number.

12985558992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12985558992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21863981568).

12985558992 is an abundant number, since it is smaller than the sum of its proper divisors (30742404144).

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

12985558992 is a wasteful number, since it uses less digits than its factorization.

12985558992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535 (or 519 counting only the distinct ones).

The product of its digits is 23328000, while the sum is 63.

The spelling of 12985558992 in words is "twelve billion, nine hundred eighty-five million, five hundred fifty-eight thousand, nine hundred ninety-two".