12840023007 has 48 divisors (see below), whose sum is σ = 22497164352. Its totient is φ = 6888913920.

The previous prime is 12840022963. The next prime is 12840023011. The reversal of 12840023007 is 70032004821.

12840023007 is a `hidden beast` number, since 1 + 28 + 400 + 230 + 0 + 7 = 666.

It is not a de Polignac number, because 12840023007 - 2⁸ = 12840022751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12840023017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 436653 + ... + 465129.

It is an arithmetic number, because the mean of its divisors is an integer number (468690924).

Almost surely, 2^12840023007 is an apocalyptic number.

12840023007 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12840023007 is a deficient number, since it is larger than the sum of its proper divisors (9657141345).

12840023007 is a wasteful number, since it uses less digits than its factorization.

12840023007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28928 (or 28925 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

Adding to 12840023007 its reverse (70032004821), we get a palindrome (82872027828).

The spelling of 12840023007 in words is "twelve billion, eight hundred forty million, twenty-three thousand, seven".