269390685890 has 16 divisors (see below), whose sum is σ = 494052353208. Its totient is φ = 105723136896.

The previous prime is 269390685841. The next prime is 269390685899. The reversal of 269390685890 is 98586093962.

It can be written as a sum of positive squares in 4 ways, for example, as 186785602969 + 82605082921 = 432187^2 + 287411^2 .

It is not an unprimeable number, because it can be changed into a prime (269390685899) 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 7 ways as a sum of consecutive naturals, for example, 254141627 + ... + 254142686.

Almost surely, 2^269390685890 is an apocalyptic number.

269390685890 is a deficient number, since it is larger than the sum of its proper divisors (224661667318).

269390685890 is a wasteful number, since it uses less digits than its factorization.

269390685890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508284373.

The product of its (nonzero) digits is 50388480, while the sum is 65.

The spelling of 269390685890 in words is "two hundred sixty-nine billion, three hundred ninety million, six hundred eighty-five thousand, eight hundred ninety".