1387513810789 has 2 divisors, whose sum is σ = 1387513810790. Its totient is φ = 1387513810788.

The previous prime is 1387513810741. The next prime is 1387513810801. The reversal of 1387513810789 is 9870183157831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 795895936900 + 591617873889 = 892130^2 + 769167^2 .

It is an emirp because it is prime and its reverse (9870183157831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1387513810789 - 2²⁹ = 1386976939877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1387513819789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 693756905394 + 693756905395.

It is an arithmetic number, because the mean of its divisors is an integer number (693756905395).

Almost surely, 2^{1387513810789} is an apocalyptic number.

It is an amenable number.

1387513810789 is a deficient number, since it is larger than the sum of its proper divisors (1).

1387513810789 is an equidigital number, since it uses as much as digits as its factorization.

1387513810789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10160640, while the sum is 61.

The spelling of 1387513810789 in words is "one trillion, three hundred eighty-seven billion, five hundred thirteen million, eight hundred ten thousand, seven hundred eighty-nine".