22294564987 has 8 divisors (see below), whose sum is σ = 23231692800. Its totient is φ = 21368660544.

The previous prime is 22294564979. The next prime is 22294565023. The reversal of 22294564987 is 78946549222.

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

It is a cyclic number.

It is not a de Polignac number, because 22294564987 - 2³ = 22294564979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22294564387) 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, 2801787 + ... + 2809732.

It is an arithmetic number, because the mean of its divisors is an integer number (2903961600).

Almost surely, 2^22294564987 is an apocalyptic number.

22294564987 is a deficient number, since it is larger than the sum of its proper divisors (937127813).

22294564987 is a wasteful number, since it uses less digits than its factorization.

22294564987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5611685.

The product of its digits is 17418240, while the sum is 58.

The spelling of 22294564987 in words is "twenty-two billion, two hundred ninety-four million, five hundred sixty-four thousand, nine hundred eighty-seven".