20240073256591 has 2 divisors, whose sum is σ = 20240073256592. Its totient is φ = 20240073256590.

The previous prime is 20240073256547. The next prime is 20240073256603. The reversal of 20240073256591 is 19565237004202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20240073256591 - 2⁷ = 20240073256463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20240073256531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10120036628295 + 10120036628296.

It is an arithmetic number, because the mean of its divisors is an integer number (10120036628296).

Almost surely, 2^{20240073256591} is an apocalyptic number.

20240073256591 is a deficient number, since it is larger than the sum of its proper divisors (1).

20240073256591 is an equidigital number, since it uses as much as digits as its factorization.

20240073256591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 20240073256591 in words is "twenty trillion, two hundred forty billion, seventy-three million, two hundred fifty-six thousand, five hundred ninety-one".