12002787040 has 96 divisors (see below), whose sum is σ = 28946012256. Its totient is φ = 4701665280.

The previous prime is 12002787037. The next prime is 12002787053. The reversal of 12002787040 is 4078720021.

It is a junction number, because it is equal to n+sod(n) for n = 12002786993 and 12002787011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6214875 + ... + 6216805.

It is an arithmetic number, because the mean of its divisors is an integer number (301520961).

Almost surely, 2^12002787040 is an apocalyptic number.

12002787040 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 12002787040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14473006128).

12002787040 is an abundant number, since it is smaller than the sum of its proper divisors (16943225216).

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

12002787040 is a wasteful number, since it uses less digits than its factorization.

12002787040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2732 (or 2724 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 31.

The spelling of 12002787040 in words is "twelve billion, two million, seven hundred eighty-seven thousand, forty".