10398338497777 has 2 divisors, whose sum is σ = 10398338497778. Its totient is φ = 10398338497776.

The previous prime is 10398338497739. The next prime is 10398338497847. The reversal of 10398338497777 is 77779483389301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9887307959281 + 511030538496 = 3144409^2 + 714864^2 .

It is a cyclic number.

It is not a de Polignac number, because 10398338497777 - 2⁷ = 10398338497649 is a prime.

It is not a weakly prime, because it can be changed into another prime (10398338417777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5199169248888 + 5199169248889.

It is an arithmetic number, because the mean of its divisors is an integer number (5199169248889).

Almost surely, 2^{10398338497777} is an apocalyptic number.

It is an amenable number.

10398338497777 is a deficient number, since it is larger than the sum of its proper divisors (1).

10398338497777 is an equidigital number, since it uses as much as digits as its factorization.

10398338497777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344252672, while the sum is 76.

The spelling of 10398338497777 in words is "ten trillion, three hundred ninety-eight billion, three hundred thirty-eight million, four hundred ninety-seven thousand, seven hundred seventy-seven".