265134451025089 has 2 divisors, whose sum is σ = 265134451025090. Its totient is φ = 265134451025088.

The previous prime is 265134451025077. The next prime is 265134451025177. The reversal of 265134451025089 is 980520154431562.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 237867078243600 + 27267372781489 = 15422940^2 + 5221817^2 .

It is a cyclic number.

It is not a de Polignac number, because 265134451025089 - 2¹⁵ = 265134450992321 is a prime.

It is not a weakly prime, because it can be changed into another prime (265134451025039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132567225512544 + 132567225512545.

It is an arithmetic number, because the mean of its divisors is an integer number (132567225512545).

Almost surely, 2^{265134451025089} is an apocalyptic number.

It is an amenable number.

265134451025089 is a deficient number, since it is larger than the sum of its proper divisors (1).

265134451025089 is an equidigital number, since it uses as much as digits as its factorization.

265134451025089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368000, while the sum is 55.

The spelling of 265134451025089 in words is "two hundred sixty-five trillion, one hundred thirty-four billion, four hundred fifty-one million, twenty-five thousand, eighty-nine".