269843385397 has 4 divisors (see below), whose sum is σ = 269847597376. Its totient is φ = 269839173420.

The previous prime is 269843385349. The next prime is 269843385403. The reversal of 269843385397 is 793583348962.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-269843385397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (269843385307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2008383 + ... + 2138524.

It is an arithmetic number, because the mean of its divisors is an integer number (67461899344).

Almost surely, 2^269843385397 is an apocalyptic number.

It is an amenable number.

269843385397 is a deficient number, since it is larger than the sum of its proper divisors (4211979).

269843385397 is an equidigital number, since it uses as much as digits as its factorization.

269843385397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4211978.

The product of its digits is 235146240, while the sum is 67.

The spelling of 269843385397 in words is "two hundred sixty-nine billion, eight hundred forty-three million, three hundred eighty-five thousand, three hundred ninety-seven".