12646140335 has 8 divisors (see below), whose sum is σ = 15184196496. Its totient is φ = 10111026880.

The previous prime is 12646140323. The next prime is 12646140337. The reversal of 12646140335 is 53304164621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12646140335 - 2⁶ = 12646140271 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12646140295 and 12646140304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12646140337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 726209 + ... + 743418.

It is an arithmetic number, because the mean of its divisors is an integer number (1898024562).

Almost surely, 2^12646140335 is an apocalyptic number.

12646140335 is a deficient number, since it is larger than the sum of its proper divisors (2538056161).

12646140335 is a wasteful number, since it uses less digits than its factorization.

12646140335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471353.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 12646140335 in words is "twelve billion, six hundred forty-six million, one hundred forty thousand, three hundred thirty-five".