1338715198801 has 2 divisors, whose sum is σ = 1338715198802. Its totient is φ = 1338715198800.

The previous prime is 1338715198763. The next prime is 1338715198811. The reversal of 1338715198801 is 1088915178331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 854265790225 + 484449408576 = 924265^2 + 696024^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1338715198801 is a prime.

It is not a weakly prime, because it can be changed into another prime (1338715198811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 669357599400 + 669357599401.

It is an arithmetic number, because the mean of its divisors is an integer number (669357599401).

Almost surely, 2^{1338715198801} is an apocalyptic number.

It is an amenable number.

1338715198801 is a deficient number, since it is larger than the sum of its proper divisors (1).

1338715198801 is an equidigital number, since it uses as much as digits as its factorization.

1338715198801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1451520, while the sum is 55.

The spelling of 1338715198801 in words is "one trillion, three hundred thirty-eight billion, seven hundred fifteen million, one hundred ninety-eight thousand, eight hundred one".