265140126634619 has 2 divisors, whose sum is σ = 265140126634620. Its totient is φ = 265140126634618.

The previous prime is 265140126634613. The next prime is 265140126634709. The reversal of 265140126634619 is 916436621041562.

It is a happy number.

265140126634619 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 is a cyclic number.

It is not a de Polignac number, because 265140126634619 - 2³⁶ = 265071407157883 is a prime.

It is a super-2 number, since 2×265140126634619² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (265140126634613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132570063317309 + 132570063317310.

It is an arithmetic number, because the mean of its divisors is an integer number (132570063317310).

Almost surely, 2^{265140126634619} is an apocalyptic number.

265140126634619 is a deficient number, since it is larger than the sum of its proper divisors (1).

265140126634619 is an equidigital number, since it uses as much as digits as its factorization.

265140126634619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11197440, while the sum is 56.

The spelling of 265140126634619 in words is "two hundred sixty-five trillion, one hundred forty billion, one hundred twenty-six million, six hundred thirty-four thousand, six hundred nineteen".