10890774809 has 2 divisors, whose sum is σ = 10890774810. Its totient is φ = 10890774808.

The previous prime is 10890774799. The next prime is 10890774823. The reversal of 10890774809 is 90847709801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8430912400 + 2459862409 = 91820^2 + 49597^2 .

It is an emirp because it is prime and its reverse (90847709801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10890774809 - 2⁴ = 10890774793 is a prime.

It is not a weakly prime, because it can be changed into another prime (10890774899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5445387404 + 5445387405.

It is an arithmetic number, because the mean of its divisors is an integer number (5445387405).

Almost surely, 2^10890774809 is an apocalyptic number.

It is an amenable number.

10890774809 is a deficient number, since it is larger than the sum of its proper divisors (1).

10890774809 is an equidigital number, since it uses as much as digits as its factorization.

10890774809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1016064, while the sum is 53.

The spelling of 10890774809 in words is "ten billion, eight hundred ninety million, seven hundred seventy-four thousand, eight hundred nine".