75969289349 has 2 divisors, whose sum is σ = 75969289350. Its totient is φ = 75969289348.

The previous prime is 75969289321. The next prime is 75969289391. The reversal of 75969289349 is 94398296957.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75656353249 + 312936100 = 275057^2 + 17690^2 .

It is a cyclic number.

It is not a de Polignac number, because 75969289349 - 2⁸ = 75969289093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75969289399) 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, 37984644674 + 37984644675.

It is an arithmetic number, because the mean of its divisors is an integer number (37984644675).

Almost surely, 2^75969289349 is an apocalyptic number.

It is an amenable number.

75969289349 is a deficient number, since it is larger than the sum of its proper divisors (1).

75969289349 is an equidigital number, since it uses as much as digits as its factorization.

75969289349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 264539520, while the sum is 71.

The spelling of 75969289349 in words is "seventy-five billion, nine hundred sixty-nine million, two hundred eighty-nine thousand, three hundred forty-nine".