11129079557 has 2 divisors, whose sum is σ = 11129079558. Its totient is φ = 11129079556.

The previous prime is 11129079503. The next prime is 11129079587. The reversal of 11129079557 is 75597092111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8612953636 + 2516125921 = 92806^2 + 50161^2 .

It is a cyclic number.

It is not a de Polignac number, because 11129079557 - 2¹⁰ = 11129078533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11129079587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5564539778 + 5564539779.

It is an arithmetic number, because the mean of its divisors is an integer number (5564539779).

Almost surely, 2^11129079557 is an apocalyptic number.

It is an amenable number.

11129079557 is a deficient number, since it is larger than the sum of its proper divisors (1).

11129079557 is an equidigital number, since it uses as much as digits as its factorization.

11129079557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 198450, while the sum is 47.

The spelling of 11129079557 in words is "eleven billion, one hundred twenty-nine million, seventy-nine thousand, five hundred fifty-seven".