4591605806231 has 2 divisors, whose sum is σ = 4591605806232. Its totient is φ = 4591605806230.

The previous prime is 4591605806171. The next prime is 4591605806233. The reversal of 4591605806231 is 1326085061954.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4591605806231 - 2¹⁴ = 4591605789847 is a prime.

It is a super-2 number, since 2×4591605806231² (a number of 26 digits) contains 22 as substring.

Together with 4591605806233, 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 4591605806231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4591605806233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2295802903115 + 2295802903116.

It is an arithmetic number, because the mean of its divisors is an integer number (2295802903116).

Almost surely, 2^{4591605806231} is an apocalyptic number.

4591605806231 is a deficient number, since it is larger than the sum of its proper divisors (1).

4591605806231 is an equidigital number, since it uses as much as digits as its factorization.

4591605806231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1555200, while the sum is 50.

The spelling of 4591605806231 in words is "four trillion, five hundred ninety-one billion, six hundred five million, eight hundred six thousand, two hundred thirty-one".