11009999747869 has 2 divisors, whose sum is σ = 11009999747870. Its totient is φ = 11009999747868.

The previous prime is 11009999747837. The next prime is 11009999747939. The reversal of 11009999747869 is 96874799990011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10002861052900 + 1007138694969 = 3162730^2 + 1003563^2 .

It is a cyclic number.

It is not a de Polignac number, because 11009999747869 - 2⁵ = 11009999747837 is a prime.

It is a super-2 number, since 2×11009999747869² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11009999747969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5504999873934 + 5504999873935.

It is an arithmetic number, because the mean of its divisors is an integer number (5504999873935).

Almost surely, 2^{11009999747869} is an apocalyptic number.

It is an amenable number.

11009999747869 is a deficient number, since it is larger than the sum of its proper divisors (1).

11009999747869 is an equidigital number, since it uses as much as digits as its factorization.

11009999747869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 555532992, while the sum is 79.

The spelling of 11009999747869 in words is "eleven trillion, nine billion, nine hundred ninety-nine million, seven hundred forty-seven thousand, eight hundred sixty-nine".