2243613724381 has 2 divisors, whose sum is σ = 2243613724382. Its totient is φ = 2243613724380.

The previous prime is 2243613724337. The next prime is 2243613724427. The reversal of 2243613724381 is 1834273163422.

It is an a-pointer prime, because the next prime (2243613724427) can be obtained adding 2243613724381 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2068965792100 + 174647932281 = 1438390^2 + 417909^2 .

It is a cyclic number.

It is not a de Polignac number, because 2243613724381 - 2²³ = 2243605335773 is a prime.

It is a super-2 number, since 2×2243613724381² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2243613754381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121806862190 + 1121806862191.

It is an arithmetic number, because the mean of its divisors is an integer number (1121806862191).

Almost surely, 2^{2243613724381} is an apocalyptic number.

It is an amenable number.

2243613724381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2243613724381 is an equidigital number, since it uses as much as digits as its factorization.

2243613724381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1161216, while the sum is 46.

The spelling of 2243613724381 in words is "two trillion, two hundred forty-three billion, six hundred thirteen million, seven hundred twenty-four thousand, three hundred eighty-one".