269860997909 has 2 divisors, whose sum is σ = 269860997910. Its totient is φ = 269860997908.

The previous prime is 269860997891. The next prime is 269860997957. The reversal of 269860997909 is 909799068962.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 262300695409 + 7560302500 = 512153^2 + 86950^2 .

It is a cyclic number.

It is not a de Polignac number, because 269860997909 - 2²⁴ = 269844220693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (269860097909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134930498954 + 134930498955.

It is an arithmetic number, because the mean of its divisors is an integer number (134930498955).

Almost surely, 2^269860997909 is an apocalyptic number.

It is an amenable number.

269860997909 is a deficient number, since it is larger than the sum of its proper divisors (1).

269860997909 is an equidigital number, since it uses as much as digits as its factorization.

269860997909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 238085568, while the sum is 74.

The spelling of 269860997909 in words is "two hundred sixty-nine billion, eight hundred sixty million, nine hundred ninety-seven thousand, nine hundred nine".