269021564849 has 2 divisors, whose sum is σ = 269021564850. Its totient is φ = 269021564848.

The previous prime is 269021564843. The next prime is 269021564863. The reversal of 269021564849 is 948465120962.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149811573025 + 119209991824 = 387055^2 + 345268^2 .

It is a cyclic number.

It is not a de Polignac number, because 269021564849 - 2²⁴ = 269004787633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 269021564794 and 269021564803.

It is not a weakly prime, because it can be changed into another prime (269021564843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134510782424 + 134510782425.

It is an arithmetic number, because the mean of its divisors is an integer number (134510782425).

Almost surely, 2^269021564849 is an apocalyptic number.

It is an amenable number.

269021564849 is a deficient number, since it is larger than the sum of its proper divisors (1).

269021564849 is an equidigital number, since it uses as much as digits as its factorization.

269021564849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7464960, while the sum is 56.

The spelling of 269021564849 in words is "two hundred sixty-nine billion, twenty-one million, five hundred sixty-four thousand, eight hundred forty-nine".