12840970518 has 48 divisors (see below), whose sum is σ = 29182364640. Its totient is φ = 4072983552.

The previous prime is 12840970487. The next prime is 12840970573. The reversal of 12840970518 is 81507904821.

12840970518 is a `hidden beast` number, since 1 + 2 + 8 + 40 + 97 + 0 + 518 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 453 + ... + 160256.

It is an arithmetic number, because the mean of its divisors is an integer number (607965930).

Almost surely, 2^12840970518 is an apocalyptic number.

12840970518 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12840970518, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14591182320).

12840970518 is an abundant number, since it is smaller than the sum of its proper divisors (16341394122).

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

12840970518 is a wasteful number, since it uses less digits than its factorization.

12840970518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160933 (or 160930 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The spelling of 12840970518 in words is "twelve billion, eight hundred forty million, nine hundred seventy thousand, five hundred eighteen".