75438805999 has 2 divisors, whose sum is σ = 75438806000. Its totient is φ = 75438805998.

The previous prime is 75438805969. The next prime is 75438806041. The reversal of 75438805999 is 99950883457.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 75438805999 - 2¹³ = 75438797807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75438805969) 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, 37719402999 + 37719403000.

It is an arithmetic number, because the mean of its divisors is an integer number (37719403000).

Almost surely, 2^75438805999 is an apocalyptic number.

75438805999 is a deficient number, since it is larger than the sum of its proper divisors (1).

75438805999 is an equidigital number, since it uses as much as digits as its factorization.

75438805999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97977600, while the sum is 67.

The spelling of 75438805999 in words is "seventy-five billion, four hundred thirty-eight million, eight hundred five thousand, nine hundred ninety-nine".