11049942569 has 8 divisors (see below), whose sum is σ = 11079556488. Its totient is φ = 11020364800.

The previous prime is 11049942551. The next prime is 11049942593. The reversal of 11049942569 is 96524994011.

It can be written as a sum of positive squares in 4 ways, for example, as 698914969 + 10351027600 = 26437^2 + 101740^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11049942569 is a prime.

It is a super-2 number, since 2×11049942569² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11049942769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 669719 + ... + 686019.

It is an arithmetic number, because the mean of its divisors is an integer number (1384944561).

Almost surely, 2^11049942569 is an apocalyptic number.

It is an amenable number.

11049942569 is a deficient number, since it is larger than the sum of its proper divisors (29613919).

11049942569 is a wasteful number, since it uses less digits than its factorization.

11049942569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18075.

The product of its (nonzero) digits is 699840, while the sum is 50.

The spelling of 11049942569 in words is "eleven billion, forty-nine million, nine hundred forty-two thousand, five hundred sixty-nine".