10869589261 has 4 divisors (see below), whose sum is σ = 10874141500. Its totient is φ = 10865037024.

The previous prime is 10869589243. The next prime is 10869589277. The reversal of 10869589261 is 16298596801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16298596801 = 587 ⋅27765923.

It can be written as a sum of positive squares in 2 ways, for example, as 1732141161 + 9137448100 = 41619^2 + 95590^2 .

It is a cyclic number.

It is not a de Polignac number, because 10869589261 - 2¹¹ = 10869587213 is a prime.

It is a super-2 number, since 2×10869589261² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10869589201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2272536 + ... + 2277313.

It is an arithmetic number, because the mean of its divisors is an integer number (2718535375).

Almost surely, 2^10869589261 is an apocalyptic number.

It is an amenable number.

10869589261 is a deficient number, since it is larger than the sum of its proper divisors (4552239).

10869589261 is an equidigital number, since it uses as much as digits as its factorization.

10869589261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4552238.

The product of its (nonzero) digits is 1866240, while the sum is 55.

The spelling of 10869589261 in words is "ten billion, eight hundred sixty-nine million, five hundred eighty-nine thousand, two hundred sixty-one".