1487388613537 has 2 divisors, whose sum is σ = 1487388613538. Its totient is φ = 1487388613536.

The previous prime is 1487388613531. The next prime is 1487388613547. The reversal of 1487388613537 is 7353168837841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1444416981921 + 42971631616 = 1201839^2 + 207296^2 .

It is a cyclic number.

It is not a de Polignac number, because 1487388613537 - 2²³ = 1487380224929 is a prime.

It is not a weakly prime, because it can be changed into another prime (1487388613531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 743694306768 + 743694306769.

It is an arithmetic number, because the mean of its divisors is an integer number (743694306769).

Almost surely, 2^{1487388613537} is an apocalyptic number.

It is an amenable number.

1487388613537 is a deficient number, since it is larger than the sum of its proper divisors (1).

1487388613537 is an equidigital number, since it uses as much as digits as its factorization.

1487388613537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81285120, while the sum is 64.

The spelling of 1487388613537 in words is "one trillion, four hundred eighty-seven billion, three hundred eighty-eight million, six hundred thirteen thousand, five hundred thirty-seven".