12840613330547 has 4 divisors (see below), whose sum is σ = 12840625729176. Its totient is φ = 12840600931920.

The previous prime is 12840613330511. The next prime is 12840613330583. The reversal of 12840613330547 is 74503331604821.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12840613330511) and next prime (12840613330583).

It is a cyclic number.

It is not a de Polignac number, because 12840613330547 - 2⁸ = 12840613330291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12840613330247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4488458 + ... + 6769599.

It is an arithmetic number, because the mean of its divisors is an integer number (3210156432294).

Almost surely, 2^{12840613330547} is an apocalyptic number.

12840613330547 is a deficient number, since it is larger than the sum of its proper divisors (12398629).

12840613330547 is a wasteful number, since it uses less digits than its factorization.

12840613330547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12398628.

The product of its (nonzero) digits is 1451520, while the sum is 47.

The spelling of 12840613330547 in words is "twelve trillion, eight hundred forty billion, six hundred thirteen million, three hundred thirty thousand, five hundred forty-seven".