22195778379 has 8 divisors (see below), whose sum is σ = 29595072000. Its totient is φ = 14796835176.

The previous prime is 22195778377. The next prime is 22195778383. The reversal of 22195778379 is 97387759122.

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

It is not a de Polignac number, because 22195778379 - 2¹ = 22195778377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22195778377) 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, 160894 + ... + 265100.

It is an arithmetic number, because the mean of its divisors is an integer number (3699384000).

Almost surely, 2^22195778379 is an apocalyptic number.

22195778379 is a deficient number, since it is larger than the sum of its proper divisors (7399293621).

22195778379 is a wasteful number, since it uses less digits than its factorization.

22195778379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175209.

The product of its digits is 13335840, while the sum is 60.

The spelling of 22195778379 in words is "twenty-two billion, one hundred ninety-five million, seven hundred seventy-eight thousand, three hundred seventy-nine".