10864765805 has 4 divisors (see below), whose sum is σ = 13037718972. Its totient is φ = 8691812640.

The previous prime is 10864765781. The next prime is 10864765817. The reversal of 10864765805 is 50856746801.

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 4077971881 + 6786793924 = 63859^2 + 82382^2 .

It is not a de Polignac number, because 10864765805 - 2²⁴ = 10847988589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1086476576 + ... + 1086476585.

It is an arithmetic number, because the mean of its divisors is an integer number (3259429743).

Almost surely, 2^10864765805 is an apocalyptic number.

It is an amenable number.

10864765805 is a deficient number, since it is larger than the sum of its proper divisors (2172953167).

10864765805 is an equidigital number, since it uses as much as digits as its factorization.

10864765805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172953166.

The product of its (nonzero) digits is 1612800, while the sum is 50.

The spelling of 10864765805 in words is "ten billion, eight hundred sixty-four million, seven hundred sixty-five thousand, eight hundred five".