56840434271 has 2 divisors, whose sum is σ = 56840434272. Its totient is φ = 56840434270.

The previous prime is 56840434241. The next prime is 56840434289. The reversal of 56840434271 is 17243404865.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56840434271 - 2⁶ = 56840434207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56840434241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28420217135 + 28420217136.

It is an arithmetic number, because the mean of its divisors is an integer number (28420217136).

Almost surely, 2^56840434271 is an apocalyptic number.

56840434271 is a deficient number, since it is larger than the sum of its proper divisors (1).

56840434271 is an equidigital number, since it uses as much as digits as its factorization.

56840434271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 645120, while the sum is 44.

The spelling of 56840434271 in words is "fifty-six billion, eight hundred forty million, four hundred thirty-four thousand, two hundred seventy-one".