265243744499023 has 2 divisors, whose sum is σ = 265243744499024. Its totient is φ = 265243744499022.

The previous prime is 265243744498979. The next prime is 265243744499029. The reversal of 265243744499023 is 320994447342562.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 265243744499023 - 2²⁵ = 265243710944591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (265243744499029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132621872249511 + 132621872249512.

It is an arithmetic number, because the mean of its divisors is an integer number (132621872249512).

Almost surely, 2^{265243744499023} is an apocalyptic number.

265243744499023 is a deficient number, since it is larger than the sum of its proper divisors (1).

265243744499023 is an equidigital number, since it uses as much as digits as its factorization.

265243744499023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 313528320, while the sum is 64.

The spelling of 265243744499023 in words is "two hundred sixty-five trillion, two hundred forty-three billion, seven hundred forty-four million, four hundred ninety-nine thousand, twenty-three".