223948799989 has 2 divisors, whose sum is σ = 223948799990. Its totient is φ = 223948799988.

The previous prime is 223948799969. The next prime is 223948800011. The reversal of 223948799989 is 989997849322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212751562500 + 11197237489 = 461250^2 + 105817^2 .

It is a cyclic number.

It is not a de Polignac number, because 223948799989 - 2¹⁵ = 223948767221 is a prime.

It is a super-3 number, since 3×223948799989³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223948799969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111974399994 + 111974399995.

It is an arithmetic number, because the mean of its divisors is an integer number (111974399995).

Almost surely, 2^223948799989 is an apocalyptic number.

It is an amenable number.

223948799989 is a deficient number, since it is larger than the sum of its proper divisors (1).

223948799989 is an equidigital number, since it uses as much as digits as its factorization.

223948799989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1269789696, while the sum is 79.

The spelling of 223948799989 in words is "two hundred twenty-three billion, nine hundred forty-eight million, seven hundred ninety-nine thousand, nine hundred eighty-nine".