40452558191 has 2 divisors, whose sum is σ = 40452558192. Its totient is φ = 40452558190.

The previous prime is 40452558173. The next prime is 40452558193. The reversal of 40452558191 is 19185525404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40452558191 - 2⁶ = 40452558127 is a prime.

Together with 40452558193, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40452558193) 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, 20226279095 + 20226279096.

It is an arithmetic number, because the mean of its divisors is an integer number (20226279096).

Almost surely, 2^40452558191 is an apocalyptic number.

40452558191 is a deficient number, since it is larger than the sum of its proper divisors (1).

40452558191 is an equidigital number, since it uses as much as digits as its factorization.

40452558191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288000, while the sum is 44.

The spelling of 40452558191 in words is "forty billion, four hundred fifty-two million, five hundred fifty-eight thousand, one hundred ninety-one".