1338247259773 has 2 divisors, whose sum is σ = 1338247259774. Its totient is φ = 1338247259772.

The previous prime is 1338247259761. The next prime is 1338247259779. The reversal of 1338247259773 is 3779527428331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1336525590724 + 1721669049 = 1156082^2 + 41493^2 .

It is a cyclic number.

It is not a de Polignac number, because 1338247259773 - 2²¹ = 1338245162621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1338247259779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 669123629886 + 669123629887.

It is an arithmetic number, because the mean of its divisors is an integer number (669123629887).

Almost surely, 2^{1338247259773} is an apocalyptic number.

It is an amenable number.

1338247259773 is a deficient number, since it is larger than the sum of its proper divisors (1).

1338247259773 is an equidigital number, since it uses as much as digits as its factorization.

1338247259773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53343360, while the sum is 61.

The spelling of 1338247259773 in words is "one trillion, three hundred thirty-eight billion, two hundred forty-seven million, two hundred fifty-nine thousand, seven hundred seventy-three".