10557569084849 has 2 divisors, whose sum is σ = 10557569084850. Its totient is φ = 10557569084848.

The previous prime is 10557569084813. The next prime is 10557569084869. The reversal of 10557569084849 is 94848096575501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5351208839824 + 5206360245025 = 2313268^2 + 2281745^2 .

It is a cyclic number.

It is not a de Polignac number, because 10557569084849 - 2²⁰ = 10557568036273 is a prime.

It is a super-2 number, since 2×10557569084849² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10557569084869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5278784542424 + 5278784542425.

It is an arithmetic number, because the mean of its divisors is an integer number (5278784542425).

Almost surely, 2^{10557569084849} is an apocalyptic number.

It is an amenable number.

10557569084849 is a deficient number, since it is larger than the sum of its proper divisors (1).

10557569084849 is an equidigital number, since it uses as much as digits as its factorization.

10557569084849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456000, while the sum is 71.

The spelling of 10557569084849 in words is "ten trillion, five hundred fifty-seven billion, five hundred sixty-nine million, eighty-four thousand, eight hundred forty-nine".