10885378969 has 4 divisors (see below), whose sum is σ = 10924676644. Its totient is φ = 10846081296.

The previous prime is 10885378957. The next prime is 10885378979. The reversal of 10885378969 is 96987358801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 600985225 + 10284393744 = 24515^2 + 101412^2 .

It is a cyclic number.

It is not a de Polignac number, because 10885378969 - 2⁵ = 10885378937 is a prime.

It is a super-2 number, since 2×10885378969² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10885378969.

It is not an unprimeable number, because it can be changed into a prime (10885378909) 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, 19648422 + ... + 19648975.

It is an arithmetic number, because the mean of its divisors is an integer number (2731169161).

Almost surely, 2^10885378969 is an apocalyptic number.

It is an amenable number.

10885378969 is a deficient number, since it is larger than the sum of its proper divisors (39297675).

10885378969 is an equidigital number, since it uses as much as digits as its factorization.

10885378969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39297674.

The product of its (nonzero) digits is 26127360, while the sum is 64.

The spelling of 10885378969 in words is "ten billion, eight hundred eighty-five million, three hundred seventy-eight thousand, nine hundred sixty-nine".