12840791641 has 8 divisors (see below), whose sum is σ = 13738208000. Its totient is φ = 11965533840.

The previous prime is 12840791629. The next prime is 12840791671. The reversal of 12840791641 is 14619704821.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12840791641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12840791671) 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 7 ways as a sum of consecutive naturals, for example, 5538441 + ... + 5540758.

It is an arithmetic number, because the mean of its divisors is an integer number (1717276000).

Almost surely, 2^12840791641 is an apocalyptic number.

It is an amenable number.

12840791641 is a deficient number, since it is larger than the sum of its proper divisors (897416359).

12840791641 is a wasteful number, since it uses less digits than its factorization.

12840791641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11079279.

The product of its (nonzero) digits is 96768, while the sum is 43.

The spelling of 12840791641 in words is "twelve billion, eight hundred forty million, seven hundred ninety-one thousand, six hundred forty-one".