269185522138 has 16 divisors (see below), whose sum is σ = 440794841256. Its totient is φ = 122537560320.

The previous prime is 269185522093. The next prime is 269185522139. The reversal of 269185522138 is 831225581962.

It can be written as a sum of positive squares in 4 ways, for example, as 261946405249 + 7239116889 = 511807^2 + 85083^2 .

It is not an unprimeable number, because it can be changed into a prime (269185522139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70911043 + ... + 70914838.

Almost surely, 2^269185522138 is an apocalyptic number.

269185522138 is a deficient number, since it is larger than the sum of its proper divisors (171609319118).

269185522138 is a wasteful number, since it uses less digits than its factorization.

269185522138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141825969.

The product of its digits is 2073600, while the sum is 52.

The spelling of 269185522138 in words is "two hundred sixty-nine billion, one hundred eighty-five million, five hundred twenty-two thousand, one hundred thirty-eight".