75560888545921 has 2 divisors, whose sum is σ = 75560888545922. Its totient is φ = 75560888545920.

The previous prime is 75560888545841. The next prime is 75560888545963. The reversal of 75560888545921 is 12954588806557.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74998388545921 + 562500000000 = 8660161^2 + 750000^2 .

It is a cyclic number.

It is not a de Polignac number, because 75560888545921 - 2¹⁷ = 75560888414849 is a prime.

It is not a weakly prime, because it can be changed into another prime (75560888545991) 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, 37780444272960 + 37780444272961.

It is an arithmetic number, because the mean of its divisors is an integer number (37780444272961).

Almost surely, 2^{75560888545921} is an apocalyptic number.

It is an amenable number.

75560888545921 is a deficient number, since it is larger than the sum of its proper divisors (1).

75560888545921 is an equidigital number, since it uses as much as digits as its factorization.

75560888545921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 967680000, while the sum is 73.

The spelling of 75560888545921 in words is "seventy-five trillion, five hundred sixty billion, eight hundred eighty-eight million, five hundred forty-five thousand, nine hundred twenty-one".