75507757868497 has 2 divisors, whose sum is σ = 75507757868498. Its totient is φ = 75507757868496.

The previous prime is 75507757868381. The next prime is 75507757868507. The reversal of 75507757868497 is 79486875770557.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61946281395216 + 13561476473281 = 7870596^2 + 3682591^2 .

It is a cyclic number.

It is not a de Polignac number, because 75507757868497 - 2¹⁵ = 75507757835729 is a prime.

It is not a weakly prime, because it can be changed into another prime (75507757868897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37753878934248 + 37753878934249.

It is an arithmetic number, because the mean of its divisors is an integer number (37753878934249).

Almost surely, 2^{75507757868497} is an apocalyptic number.

It is an amenable number.

75507757868497 is a deficient number, since it is larger than the sum of its proper divisors (1).

75507757868497 is an equidigital number, since it uses as much as digits as its factorization.

75507757868497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29042496000, while the sum is 85.

The spelling of 75507757868497 in words is "seventy-five trillion, five hundred seven billion, seven hundred fifty-seven million, eight hundred sixty-eight thousand, four hundred ninety-seven".