265037540813 has 2 divisors, whose sum is σ = 265037540814. Its totient is φ = 265037540812.

The previous prime is 265037540711. The next prime is 265037540827. The reversal of 265037540813 is 318045730562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 185040206569 + 79997334244 = 430163^2 + 282838^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-265037540813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (265037540893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132518770406 + 132518770407.

It is an arithmetic number, because the mean of its divisors is an integer number (132518770407).

Almost surely, 2^265037540813 is an apocalyptic number.

It is an amenable number.

265037540813 is a deficient number, since it is larger than the sum of its proper divisors (1).

265037540813 is an equidigital number, since it uses as much as digits as its factorization.

265037540813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 265037540813 in words is "two hundred sixty-five billion, thirty-seven million, five hundred forty thousand, eight hundred thirteen".