75773757542209 has 2 divisors, whose sum is σ = 75773757542210. Its totient is φ = 75773757542208.

The previous prime is 75773757542117. The next prime is 75773757542281. The reversal of 75773757542209 is 90224575737757.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54796414051600 + 20977343490609 = 7402460^2 + 4580103^2 .

It is a cyclic number.

It is not a de Polignac number, because 75773757542209 - 2⁷ = 75773757542081 is a prime.

It is not a weakly prime, because it can be changed into another prime (75773757572209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37886878771104 + 37886878771105.

It is an arithmetic number, because the mean of its divisors is an integer number (37886878771105).

Almost surely, 2^{75773757542209} is an apocalyptic number.

It is an amenable number.

75773757542209 is a deficient number, since it is larger than the sum of its proper divisors (1).

75773757542209 is an equidigital number, since it uses as much as digits as its factorization.

75773757542209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 907578000, while the sum is 70.

The spelling of 75773757542209 in words is "seventy-five trillion, seven hundred seventy-three billion, seven hundred fifty-seven million, five hundred forty-two thousand, two hundred nine".