1487388613517 has 2 divisors, whose sum is σ = 1487388613518. Its totient is φ = 1487388613516.

The previous prime is 1487388613511. The next prime is 1487388613531. The reversal of 1487388613517 is 7153168837841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1407559196836 + 79829416681 = 1186406^2 + 282541^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1487388613517 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1487388613517.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1487388613511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 743694306758 + 743694306759.

It is an arithmetic number, because the mean of its divisors is an integer number (743694306759).

Almost surely, 2^{1487388613517} is an apocalyptic number.

It is an amenable number.

1487388613517 is a deficient number, since it is larger than the sum of its proper divisors (1).

1487388613517 is an equidigital number, since it uses as much as digits as its factorization.

1487388613517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27095040, while the sum is 62.

The spelling of 1487388613517 in words is "one trillion, four hundred eighty-seven billion, three hundred eighty-eight million, six hundred thirteen thousand, five hundred seventeen".