10001009591 has 2 divisors, whose sum is σ = 10001009592. Its totient is φ = 10001009590.

The previous prime is 10001009567. The next prime is 10001009593. The reversal of 10001009591 is 19590010001.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10001009591 - 2¹⁴ = 10000993207 is a prime.

Together with 10001009593, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10001009591.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10001009593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000504795 + 5000504796.

It is an arithmetic number, because the mean of its divisors is an integer number (5000504796).

Almost surely, 2^10001009591 is an apocalyptic number.

10001009591 is a deficient number, since it is larger than the sum of its proper divisors (1).

10001009591 is an equidigital number, since it uses as much as digits as its factorization.

10001009591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 405, while the sum is 26.

Adding to 10001009591 its reverse (19590010001), we get a palindrome (29591019592).

The spelling of 10001009591 in words is "ten billion, one million, nine thousand, five hundred ninety-one".