10855087769 has 4 divisors (see below), whose sum is σ = 10855511220. Its totient is φ = 10854664320.

The previous prime is 10855087723. The next prime is 10855087777. The reversal of 10855087769 is 96778055801.

10855087769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96778055801 = 7 ⋅13825436543.

It can be written as a sum of positive squares in 2 ways, for example, as 6148441744 + 4706646025 = 78412^2 + 68605^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10855087769 is a prime.

It is a super-2 number, since 2×10855087769² (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 (10855087169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170612 + ... + 225429.

It is an arithmetic number, because the mean of its divisors is an integer number (2713877805).

Almost surely, 2^10855087769 is an apocalyptic number.

It is an amenable number.

10855087769 is a deficient number, since it is larger than the sum of its proper divisors (423451).

10855087769 is an equidigital number, since it uses as much as digits as its factorization.

10855087769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423450.

The product of its (nonzero) digits is 4233600, while the sum is 56.

The spelling of 10855087769 in words is "ten billion, eight hundred fifty-five million, eighty-seven thousand, seven hundred sixty-nine".