229789927979 has 16 divisors (see below), whose sum is σ = 244297601856. Its totient is φ = 215393049600.

The previous prime is 229789927963. The next prime is 229789927981. The reversal of 229789927979 is 979729987922.

It is a cyclic number.

It is not a de Polignac number, because 229789927979 - 2⁴ = 229789927963 is a prime.

It is a super-2 number, since 2×229789927979² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (229789917979) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11484674 + ... + 11504664.

It is an arithmetic number, because the mean of its divisors is an integer number (15268600116).

Almost surely, 2^229789927979 is an apocalyptic number.

229789927979 is a deficient number, since it is larger than the sum of its proper divisors (14507673877).

229789927979 is a wasteful number, since it uses less digits than its factorization.

229789927979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22726.

The product of its digits is 1296243648, while the sum is 80.

The spelling of 229789927979 in words is "two hundred twenty-nine billion, seven hundred eighty-nine million, nine hundred twenty-seven thousand, nine hundred seventy-nine".