22478197269 has 16 divisors (see below), whose sum is σ = 32698713600. Its totient is φ = 13621835760.

The previous prime is 22478197241. The next prime is 22478197271. The reversal of 22478197269 is 96279187422.

It is not a de Polignac number, because 22478197269 - 2⁷ = 22478197141 is a prime.

It is a super-2 number, since 2×22478197269² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22478157269) 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 15 ways as a sum of consecutive naturals, for example, 399264 + ... + 452070.

It is an arithmetic number, because the mean of its divisors is an integer number (2043669600).

Almost surely, 2^22478197269 is an apocalyptic number.

It is an amenable number.

22478197269 is a deficient number, since it is larger than the sum of its proper divisors (10220516331).

22478197269 is a wasteful number, since it uses less digits than its factorization.

22478197269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65720.

The product of its digits is 6096384, while the sum is 57.

The spelling of 22478197269 in words is "twenty-two billion, four hundred seventy-eight million, one hundred ninety-seven thousand, two hundred sixty-nine".