56840435347 has 4 divisors (see below), whose sum is σ = 56842638336. Its totient is φ = 56838232360.

The previous prime is 56840435329. The next prime is 56840435363. The reversal of 56840435347 is 74353404865.

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

It is a cyclic number.

It is not a de Polignac number, because 56840435347 - 2¹⁹ = 56839911059 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56840435347.

It is not an unprimeable number, because it can be changed into a prime (56840435317) 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, 1062328 + ... + 1114549.

It is an arithmetic number, because the mean of its divisors is an integer number (14210659584).

Almost surely, 2^56840435347 is an apocalyptic number.

56840435347 is a deficient number, since it is larger than the sum of its proper divisors (2202989).

56840435347 is a wasteful number, since it uses less digits than its factorization.

56840435347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2202988.

The product of its (nonzero) digits is 4838400, while the sum is 49.

The spelling of 56840435347 in words is "fifty-six billion, eight hundred forty million, four hundred thirty-five thousand, three hundred forty-seven".