22247025779 has 8 divisors (see below), whose sum is σ = 24925415088. Its totient is φ = 19677958560.

The previous prime is 22247025769. The next prime is 22247025781. The reversal of 22247025779 is 97752074222.

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 22247025779 - 2³² = 17952058483 is a prime.

It is a super-2 number, since 2×22247025779² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22247025769) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 27330092 + ... + 27330905.

It is an arithmetic number, because the mean of its divisors is an integer number (3115676886).

Almost surely, 2^22247025779 is an apocalyptic number.

22247025779 is a deficient number, since it is larger than the sum of its proper divisors (2678389309).

22247025779 is a wasteful number, since it uses less digits than its factorization.

22247025779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54661045.

The product of its (nonzero) digits is 987840, while the sum is 47.

The spelling of 22247025779 in words is "twenty-two billion, two hundred forty-seven million, twenty-five thousand, seven hundred seventy-nine".