40453004591 has 2 divisors, whose sum is σ = 40453004592. Its totient is φ = 40453004590.

The previous prime is 40453004587. The next prime is 40453004629. The reversal of 40453004591 is 19540035404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40453004591 - 2² = 40453004587 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40453054591) 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, 20226502295 + 20226502296.

It is an arithmetic number, because the mean of its divisors is an integer number (20226502296).

Almost surely, 2^40453004591 is an apocalyptic number.

40453004591 is a deficient number, since it is larger than the sum of its proper divisors (1).

40453004591 is an equidigital number, since it uses as much as digits as its factorization.

40453004591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 40453004591 its reverse (19540035404), we get a palindrome (59993039995).

The spelling of 40453004591 in words is "forty billion, four hundred fifty-three million, four thousand, five hundred ninety-one".