22385878805 has 8 divisors (see below), whose sum is σ = 26882514744. Its totient is φ = 17895729600.

The previous prime is 22385878799. The next prime is 22385878871. The reversal of 22385878805 is 50887858322.

It can be written as a sum of positive squares in 4 ways, for example, as 3704183044 + 18681695761 = 60862^2 + 136681^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22385878805 - 2¹⁰ = 22385877781 is a prime.

It is a super-2 number, since 2×22385878805² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1614086 + ... + 1627895.

It is an arithmetic number, because the mean of its divisors is an integer number (3360314343).

Almost surely, 2^22385878805 is an apocalyptic number.

It is an amenable number.

22385878805 is a deficient number, since it is larger than the sum of its proper divisors (4496635939).

22385878805 is a wasteful number, since it uses less digits than its factorization.

22385878805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3243367.

The product of its (nonzero) digits is 8601600, while the sum is 56.

The spelling of 22385878805 in words is "twenty-two billion, three hundred eighty-five million, eight hundred seventy-eight thousand, eight hundred five".