64004035591 has 2 divisors, whose sum is σ = 64004035592. Its totient is φ = 64004035590.

The previous prime is 64004035559. The next prime is 64004035649. The reversal of 64004035591 is 19553040046.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64004035591 - 2⁵ = 64004035559 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64004035591.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64004035541) 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, 32002017795 + 32002017796.

It is an arithmetic number, because the mean of its divisors is an integer number (32002017796).

Almost surely, 2^64004035591 is an apocalyptic number.

64004035591 is a deficient number, since it is larger than the sum of its proper divisors (1).

64004035591 is an equidigital number, since it uses as much as digits as its factorization.

64004035591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 64004035591 in words is "sixty-four billion, four million, thirty-five thousand, five hundred ninety-one".