22761388805 has 4 divisors (see below), whose sum is σ = 27313666572. Its totient is φ = 18209111040.

The previous prime is 22761388799. The next prime is 22761388813. The reversal of 22761388805 is 50888316722.

It is a happy number.

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 14747916481 + 8013472324 = 121441^2 + 89518^2 .

It is not a de Polignac number, because 22761388805 - 2⁸ = 22761388549 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2276138876 + ... + 2276138885.

It is an arithmetic number, because the mean of its divisors is an integer number (6828416643).

Almost surely, 2^22761388805 is an apocalyptic number.

It is an amenable number.

22761388805 is a deficient number, since it is larger than the sum of its proper divisors (4552277767).

22761388805 is an equidigital number, since it uses as much as digits as its factorization.

22761388805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4552277766.

The product of its (nonzero) digits is 1290240, while the sum is 50.

The spelling of 22761388805 in words is "twenty-two billion, seven hundred sixty-one million, three hundred eighty-eight thousand, eight hundred five".