3438256571943 has 4 divisors (see below), whose sum is σ = 4584342095928. Its totient is φ = 2292171047960.

The previous prime is 3438256571941. The next prime is 3438256571947. The reversal of 3438256571943 is 3491756528343.

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 3438256571943 - 2¹ = 3438256571941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3438256571941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 573042761988 + ... + 573042761993.

It is an arithmetic number, because the mean of its divisors is an integer number (1146085523982).

Almost surely, 2^{3438256571943} is an apocalyptic number.

3438256571943 is a deficient number, since it is larger than the sum of its proper divisors (1146085523985).

3438256571943 is a wasteful number, since it uses less digits than its factorization.

3438256571943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146085523984.

The product of its digits is 65318400, while the sum is 60.

The spelling of 3438256571943 in words is "three trillion, four hundred thirty-eight billion, two hundred fifty-six million, five hundred seventy-one thousand, nine hundred forty-three".