264125093581 has 2 divisors, whose sum is σ = 264125093582. Its totient is φ = 264125093580.

The previous prime is 264125093501. The next prime is 264125093597. The reversal of 264125093581 is 185390521462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200086236100 + 64038857481 = 447310^2 + 253059^2 .

It is a cyclic number.

It is not a de Polignac number, because 264125093581 - 2¹⁵ = 264125060813 is a prime.

It is a super-2 number, since 2×264125093581² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264125093501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132062546790 + 132062546791.

It is an arithmetic number, because the mean of its divisors is an integer number (132062546791).

Almost surely, 2^264125093581 is an apocalyptic number.

It is an amenable number.

264125093581 is a deficient number, since it is larger than the sum of its proper divisors (1).

264125093581 is an equidigital number, since it uses as much as digits as its factorization.

264125093581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 518400, while the sum is 46.

The spelling of 264125093581 in words is "two hundred sixty-four billion, one hundred twenty-five million, ninety-three thousand, five hundred eighty-one".