5638749741241 has 2 divisors, whose sum is σ = 5638749741242. Its totient is φ = 5638749741240.

The previous prime is 5638749741197. The next prime is 5638749741263. The reversal of 5638749741241 is 1421479478365.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5634076651641 + 4673089600 = 2373621^2 + 68360^2 .

It is a cyclic number.

It is not a de Polignac number, because 5638749741241 - 2⁷ = 5638749741113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5638749741241.

It is not a weakly prime, because it can be changed into another prime (5638749741941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2819374870620 + 2819374870621.

It is an arithmetic number, because the mean of its divisors is an integer number (2819374870621).

Almost surely, 2^{5638749741241} is an apocalyptic number.

It is an amenable number.

5638749741241 is a deficient number, since it is larger than the sum of its proper divisors (1).

5638749741241 is an equidigital number, since it uses as much as digits as its factorization.

5638749741241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40642560, while the sum is 61.

The spelling of 5638749741241 in words is "five trillion, six hundred thirty-eight billion, seven hundred forty-nine million, seven hundred forty-one thousand, two hundred forty-one".