223690862979 has 8 divisors (see below), whose sum is σ = 331393871120. Its totient is φ = 149127241968.

The previous prime is 223690862917. The next prime is 223690863017. The reversal of 223690862979 is 979268096322.

It is not a de Polignac number, because 223690862979 - 2⁹ = 223690862467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223690864979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4142423362 + ... + 4142423415.

It is an arithmetic number, because the mean of its divisors is an integer number (41424233890).

Almost surely, 2^223690862979 is an apocalyptic number.

223690862979 is a deficient number, since it is larger than the sum of its proper divisors (107703008141).

223690862979 is an equidigital number, since it uses as much as digits as its factorization.

223690862979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8284846786 (or 8284846780 counting only the distinct ones).

The product of its (nonzero) digits is 35271936, while the sum is 63.

The spelling of 223690862979 in words is "two hundred twenty-three billion, six hundred ninety million, eight hundred sixty-two thousand, nine hundred seventy-nine".