12750042840 has 128 divisors (see below), whose sum is σ = 40683202560. Its totient is φ = 3185547264.

The previous prime is 12750042817. The next prime is 12750042859. The reversal of 12750042840 is 4824005721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 440907 + ... + 468933.

It is an arithmetic number, because the mean of its divisors is an integer number (317837520).

Almost surely, 2^12750042840 is an apocalyptic number.

12750042840 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 12750042840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20341601280).

12750042840 is an abundant number, since it is smaller than the sum of its proper divisors (27933159720).

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

12750042840 is a wasteful number, since it uses less digits than its factorization.

12750042840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28281 (or 28277 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 33.

The spelling of 12750042840 in words is "twelve billion, seven hundred fifty million, forty-two thousand, eight hundred forty".