22168374678 has 40 divisors (see below), whose sum is σ = 52287986520. Its totient is φ = 7000538400.

The previous prime is 22168374667. The next prime is 22168374689. The reversal of 22168374678 is 87647386122.

It is an interprime number because it is at equal distance from previous prime (22168374667) and next prime (22168374689).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3598023 + ... + 3604178.

It is an arithmetic number, because the mean of its divisors is an integer number (1307199663).

Almost surely, 2^22168374678 is an apocalyptic number.

22168374678 is an abundant number, since it is smaller than the sum of its proper divisors (30119611842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22168374678 is a wasteful number, since it uses less digits than its factorization.

22168374678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7202234 (or 7202225 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 54.

The spelling of 22168374678 in words is "twenty-two billion, one hundred sixty-eight million, three hundred seventy-four thousand, six hundred seventy-eight".