1387831773613 has 2 divisors, whose sum is σ = 1387831773614. Its totient is φ = 1387831773612.

The previous prime is 1387831773599. The next prime is 1387831773689. The reversal of 1387831773613 is 3163771387831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 913196205769 + 474635567844 = 955613^2 + 688938^2 .

It is a cyclic number.

It is not a de Polignac number, because 1387831773613 - 2⁹ = 1387831773101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1387831773113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 693915886806 + 693915886807.

It is an arithmetic number, because the mean of its divisors is an integer number (693915886807).

Almost surely, 2^{1387831773613} is an apocalyptic number.

It is an amenable number.

1387831773613 is a deficient number, since it is larger than the sum of its proper divisors (1).

1387831773613 is an equidigital number, since it uses as much as digits as its factorization.

1387831773613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10668672, while the sum is 58.

The spelling of 1387831773613 in words is "one trillion, three hundred eighty-seven billion, eight hundred thirty-one million, seven hundred seventy-three thousand, six hundred thirteen".