2223740184949 has 2 divisors, whose sum is σ = 2223740184950. Its totient is φ = 2223740184948.

The previous prime is 2223740184947. The next prime is 2223740185001. The reversal of 2223740184949 is 9494810473222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1983069486225 + 240670698724 = 1408215^2 + 490582^2 .

It is a cyclic number.

It is not a de Polignac number, because 2223740184949 - 2¹ = 2223740184947 is a prime.

It is a super-2 number, since 2×2223740184949² (a number of 25 digits) contains 22 as substring.

Together with 2223740184947, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2223740184949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2223740184947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111870092474 + 1111870092475.

It is an arithmetic number, because the mean of its divisors is an integer number (1111870092475).

Almost surely, 2^{2223740184949} is an apocalyptic number.

It is an amenable number.

2223740184949 is a deficient number, since it is larger than the sum of its proper divisors (1).

2223740184949 is an equidigital number, since it uses as much as digits as its factorization.

2223740184949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6967296, while the sum is 55.

The spelling of 2223740184949 in words is "two trillion, two hundred twenty-three billion, seven hundred forty million, one hundred eighty-four thousand, nine hundred forty-nine".