22128583961 has 8 divisors (see below), whose sum is σ = 24159016800. Its totient is φ = 20101275040.

The previous prime is 22128583927. The next prime is 22128583979. The reversal of 22128583961 is 16938582122.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-22128583961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22128583361) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 766151 + ... + 794508.

It is an arithmetic number, because the mean of its divisors is an integer number (3019877100).

Almost surely, 2^22128583961 is an apocalyptic number.

It is an amenable number.

22128583961 is a deficient number, since it is larger than the sum of its proper divisors (2030432839).

22128583961 is a wasteful number, since it uses less digits than its factorization.

22128583961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561959.

The product of its digits is 414720, while the sum is 47.

The spelling of 22128583961 in words is "twenty-two billion, one hundred twenty-eight million, five hundred eighty-three thousand, nine hundred sixty-one".