269378427613 has 4 divisors (see below), whose sum is σ = 278667338940. Its totient is φ = 260089516288.

The previous prime is 269378427611. The next prime is 269378427641. The reversal of 269378427613 is 316724873962.

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

It can be written as a sum of positive squares in 2 ways, for example, as 203240475684 + 66137951929 = 450822^2 + 257173^2 .

It is a cyclic number.

It is not a de Polignac number, because 269378427613 - 2¹ = 269378427611 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 (269378427611) 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, 4644455620 + ... + 4644455677.

It is an arithmetic number, because the mean of its divisors is an integer number (69666834735).

Almost surely, 2^269378427613 is an apocalyptic number.

It is an amenable number.

269378427613 is a deficient number, since it is larger than the sum of its proper divisors (9288911327).

269378427613 is an equidigital number, since it uses as much as digits as its factorization.

269378427613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9288911326.

The product of its digits is 18289152, while the sum is 58.

The spelling of 269378427613 in words is "two hundred sixty-nine billion, three hundred seventy-eight million, four hundred twenty-seven thousand, six hundred thirteen".