12602881980 has 288 divisors, whose sum is σ = 43113627648. Its totient is φ = 2958681600.

The previous prime is 12602881937. The next prime is 12602881981. The reversal of 12602881980 is 8918820621.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12602881981) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5149117 + ... + 5151563.

It is an arithmetic number, because the mean of its divisors is an integer number (149700096).

Almost surely, 2^12602881980 is an apocalyptic number.

12602881980 is a gapful number since it is divisible by the number (10) 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 12602881980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21556813824).

12602881980 is an abundant number, since it is smaller than the sum of its proper divisors (30510745668).

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

12602881980 is a wasteful number, since it uses less digits than its factorization.

12602881980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2577 (or 2572 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The spelling of 12602881980 in words is "twelve billion, six hundred two million, eight hundred eighty-one thousand, nine hundred eighty".