241638205993 has 2 divisors, whose sum is σ = 241638205994. Its totient is φ = 241638205992.

The previous prime is 241638205973. The next prime is 241638206081. The reversal of 241638205993 is 399502836142.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 224308326544 + 17329879449 = 473612^2 + 131643^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-241638205993 is a prime.

It is a super-2 number, since 2×241638205993² (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 241638205993.

It is not a weakly prime, because it can be changed into another prime (241638205933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120819102996 + 120819102997.

It is an arithmetic number, because the mean of its divisors is an integer number (120819102997).

Almost surely, 2^241638205993 is an apocalyptic number.

It is an amenable number.

241638205993 is a deficient number, since it is larger than the sum of its proper divisors (1).

241638205993 is an equidigital number, since it uses as much as digits as its factorization.

241638205993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2799360, while the sum is 52.

The spelling of 241638205993 in words is "two hundred forty-one billion, six hundred thirty-eight million, two hundred five thousand, nine hundred ninety-three".