1587264607121 has 2 divisors, whose sum is σ = 1587264607122. Its totient is φ = 1587264607120.

The previous prime is 1587264607039. The next prime is 1587264607153. The reversal of 1587264607121 is 1217064627851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1032144243025 + 555120364096 = 1015945^2 + 745064^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1587264607121 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1587264607121.

It is not a weakly prime, because it can be changed into another prime (1587264607421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 793632303560 + 793632303561.

It is an arithmetic number, because the mean of its divisors is an integer number (793632303561).

Almost surely, 2^{1587264607121} is an apocalyptic number.

It is an amenable number.

1587264607121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1587264607121 is an equidigital number, since it uses as much as digits as its factorization.

1587264607121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1128960, while the sum is 50.

The spelling of 1587264607121 in words is "one trillion, five hundred eighty-seven billion, two hundred sixty-four million, six hundred seven thousand, one hundred twenty-one".