10805743789 has 4 divisors (see below), whose sum is σ = 10806998940. Its totient is φ = 10804488640.

The previous prime is 10805743777. The next prime is 10805743829. The reversal of 10805743789 is 98734750801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98734750801 = 10433 ⋅9463697.

It can be written as a sum of positive squares in 2 ways, for example, as 7437682564 + 3368061225 = 86242^2 + 58035^2 .

It is a cyclic number.

It is not a de Polignac number, because 10805743789 - 2¹⁹ = 10805219501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10805743769) 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, 614572 + ... + 631909.

It is an arithmetic number, because the mean of its divisors is an integer number (2701749735).

Almost surely, 2^10805743789 is an apocalyptic number.

It is an amenable number.

10805743789 is a deficient number, since it is larger than the sum of its proper divisors (1255151).

10805743789 is an equidigital number, since it uses as much as digits as its factorization.

10805743789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255150.

The product of its (nonzero) digits is 1693440, while the sum is 52.

The spelling of 10805743789 in words is "ten billion, eight hundred five million, seven hundred forty-three thousand, seven hundred eighty-nine".