69835040557 has 2 divisors, whose sum is σ = 69835040558. Its totient is φ = 69835040556.

The previous prime is 69835040549. The next prime is 69835040623. The reversal of 69835040557 is 75504053896.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58354132356 + 11480908201 = 241566^2 + 107149^2 .

It is a cyclic number.

It is not a de Polignac number, because 69835040557 - 2³ = 69835040549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69835040857) 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, 34917520278 + 34917520279.

It is an arithmetic number, because the mean of its divisors is an integer number (34917520279).

Almost surely, 2^69835040557 is an apocalyptic number.

It is an amenable number.

69835040557 is a deficient number, since it is larger than the sum of its proper divisors (1).

69835040557 is an equidigital number, since it uses as much as digits as its factorization.

69835040557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536000, while the sum is 52.

The spelling of 69835040557 in words is "sixty-nine billion, eight hundred thirty-five million, forty thousand, five hundred fifty-seven".