269121670613 has 4 divisors (see below), whose sum is σ = 269123191020. Its totient is φ = 269120150208.

The previous prime is 269121670579. The next prime is 269121670673. The reversal of 269121670613 is 316076121962.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 316076121962 = 2 ⋅158038060981.

It can be written as a sum of positive squares in 2 ways, for example, as 229932717169 + 39188953444 = 479513^2 + 197962^2 .

It is a cyclic number.

It is not a de Polignac number, because 269121670613 - 2⁶ = 269121670549 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 (269121670673) 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, 453428 + ... + 862461.

It is an arithmetic number, because the mean of its divisors is an integer number (67280797755).

Almost surely, 2^269121670613 is an apocalyptic number.

It is an amenable number.

269121670613 is a deficient number, since it is larger than the sum of its proper divisors (1520407).

269121670613 is a wasteful number, since it uses less digits than its factorization.

269121670613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520406.

The product of its (nonzero) digits is 163296, while the sum is 44.

The spelling of 269121670613 in words is "two hundred sixty-nine billion, one hundred twenty-one million, six hundred seventy thousand, six hundred thirteen".