22209728686 has 8 divisors (see below), whose sum is σ = 33358372704. Its totient is φ = 11090271120.

The previous prime is 22209728663. The next prime is 22209728687. The reversal of 22209728686 is 68682790222.

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

It is a super-3 number, since 3×22209728686³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22209728687) 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, 7294710 + ... + 7297753.

It is an arithmetic number, because the mean of its divisors is an integer number (4169796588).

Almost surely, 2^22209728686 is an apocalyptic number.

22209728686 is a deficient number, since it is larger than the sum of its proper divisors (11148644018).

22209728686 is a wasteful number, since it uses less digits than its factorization.

22209728686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14593226.

The product of its (nonzero) digits is 2322432, while the sum is 52.

The spelling of 22209728686 in words is "twenty-two billion, two hundred nine million, seven hundred twenty-eight thousand, six hundred eighty-six".