22106286787 has 8 divisors (see below), whose sum is σ = 25207168896. Its totient is φ = 19205461632.

The previous prime is 22106286773. The next prime is 22106286817. The reversal of 22106286787 is 78768260122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22106286787 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22106286787.

It is not an unprimeable number, because it can be changed into a prime (22106286767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50014003 + ... + 50014444.

It is an arithmetic number, because the mean of its divisors is an integer number (3150896112).

Almost surely, 2^22106286787 is an apocalyptic number.

22106286787 is a deficient number, since it is larger than the sum of its proper divisors (3100882109).

22106286787 is a wasteful number, since it uses less digits than its factorization.

22106286787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100028477.

The product of its (nonzero) digits is 903168, while the sum is 49.

The spelling of 22106286787 in words is "twenty-two billion, one hundred six million, two hundred eighty-six thousand, seven hundred eighty-seven".