75687563873 has 2 divisors, whose sum is σ = 75687563874. Its totient is φ = 75687563872.

The previous prime is 75687563869. The next prime is 75687563893. The reversal of 75687563873 is 37836578657.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61549640464 + 14137923409 = 248092^2 + 118903^2 .

It is a cyclic number.

It is not a de Polignac number, because 75687563873 - 2² = 75687563869 is a prime.

It is not a weakly prime, because it can be changed into another prime (75687563803) 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, 37843781936 + 37843781937.

It is an arithmetic number, because the mean of its divisors is an integer number (37843781937).

Almost surely, 2^75687563873 is an apocalyptic number.

It is an amenable number.

75687563873 is a deficient number, since it is larger than the sum of its proper divisors (1).

75687563873 is an equidigital number, since it uses as much as digits as its factorization.

75687563873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 177811200, while the sum is 65.

The spelling of 75687563873 in words is "seventy-five billion, six hundred eighty-seven million, five hundred sixty-three thousand, eight hundred seventy-three".