264441126025409 has 2 divisors, whose sum is σ = 264441126025410. Its totient is φ = 264441126025408.

The previous prime is 264441126025387. The next prime is 264441126025523. The reversal of 264441126025409 is 904520621144462.

264441126025409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 224060782195600 + 40380343829809 = 14968660^2 + 6354553^2 .

It is a cyclic number.

It is not a de Polignac number, because 264441126025409 - 2²⁴ = 264441109248193 is a prime.

It is not a weakly prime, because it can be changed into another prime (264441126025709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132220563012704 + 132220563012705.

It is an arithmetic number, because the mean of its divisors is an integer number (132220563012705).

Almost surely, 2^{264441126025409} is an apocalyptic number.

It is an amenable number.

264441126025409 is a deficient number, since it is larger than the sum of its proper divisors (1).

264441126025409 is an equidigital number, since it uses as much as digits as its factorization.

264441126025409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3317760, while the sum is 50.

The spelling of 264441126025409 in words is "two hundred sixty-four trillion, four hundred forty-one billion, one hundred twenty-six million, twenty-five thousand, four hundred nine".