1339731394553 has 2 divisors, whose sum is σ = 1339731394554. Its totient is φ = 1339731394552.

The previous prime is 1339731394543. The next prime is 1339731394571. The reversal of 1339731394553 is 3554931379331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1267094676409 + 72636718144 = 1125653^2 + 269512^2 .

It is a cyclic number.

It is not a de Polignac number, because 1339731394553 - 2⁸ = 1339731394297 is a prime.

It is not a weakly prime, because it can be changed into another prime (1339731394543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 669865697276 + 669865697277.

It is an arithmetic number, because the mean of its divisors is an integer number (669865697277).

Almost surely, 2^{1339731394553} is an apocalyptic number.

It is an amenable number.

1339731394553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1339731394553 is an equidigital number, since it uses as much as digits as its factorization.

1339731394553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13778100, while the sum is 56.

The spelling of 1339731394553 in words is "one trillion, three hundred thirty-nine billion, seven hundred thirty-one million, three hundred ninety-four thousand, five hundred fifty-three".