8255640254347 has 4 divisors (see below), whose sum is σ = 8257971701056. Its totient is φ = 8253308807640.

The previous prime is 8255640254341. The next prime is 8255640254383. The reversal of 8255640254347 is 7434520465528.

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 8255640254347 - 2²⁷ = 8255506036619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8255640254341) 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 3 ways as a sum of consecutive naturals, for example, 1165718043 + ... + 1165725124.

It is an arithmetic number, because the mean of its divisors is an integer number (2064492925264).

Almost surely, 2^{8255640254347} is an apocalyptic number.

8255640254347 is a deficient number, since it is larger than the sum of its proper divisors (2331446709).

8255640254347 is a wasteful number, since it uses less digits than its factorization.

8255640254347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2331446708.

The product of its (nonzero) digits is 32256000, while the sum is 55.

The spelling of 8255640254347 in words is "eight trillion, two hundred fifty-five billion, six hundred forty million, two hundred fifty-four thousand, three hundred forty-seven".