223948799969 has 2 divisors, whose sum is σ = 223948799970. Its totient is φ = 223948799968.

The previous prime is 223948799933. The next prime is 223948799989. The reversal of 223948799969 is 969997849322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135910195600 + 88038604369 = 368660^2 + 296713^2 .

It is a cyclic number.

It is not a de Polignac number, because 223948799969 - 2³⁶ = 155229323233 is a prime.

It is a super-2 number, since 2×223948799969² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 223948799969.

It is not a weakly prime, because it can be changed into another prime (223948799989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111974399984 + 111974399985.

It is an arithmetic number, because the mean of its divisors is an integer number (111974399985).

Almost surely, 2^223948799969 is an apocalyptic number.

It is an amenable number.

223948799969 is a deficient number, since it is larger than the sum of its proper divisors (1).

223948799969 is an equidigital number, since it uses as much as digits as its factorization.

223948799969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 952342272, while the sum is 77.

The spelling of 223948799969 in words is "two hundred twenty-three billion, nine hundred forty-eight million, seven hundred ninety-nine thousand, nine hundred sixty-nine".