22447764379 has 4 divisors (see below), whose sum is σ = 22448097000. Its totient is φ = 22447431760.

The previous prime is 22447764371. The next prime is 22447764401. The reversal of 22447764379 is 97346774422.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22447764379 - 2³ = 22447764371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22447764371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25129 + ... + 213370.

It is an arithmetic number, because the mean of its divisors is an integer number (5612024250).

Almost surely, 2^22447764379 is an apocalyptic number.

22447764379 is a deficient number, since it is larger than the sum of its proper divisors (332621).

22447764379 is an equidigital number, since it uses as much as digits as its factorization.

22447764379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332620.

The product of its digits is 14224896, while the sum is 55.

The spelling of 22447764379 in words is "twenty-two billion, four hundred forty-seven million, seven hundred sixty-four thousand, three hundred seventy-nine".