15872871585841 has 2 divisors, whose sum is σ = 15872871585842. Its totient is φ = 15872871585840.

The previous prime is 15872871585817. The next prime is 15872871585859. The reversal of 15872871585841 is 14858517827851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10388399394816 + 5484472191025 = 3223104^2 + 2341895^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15872871585841 is a prime.

It is not a weakly prime, because it can be changed into another prime (15872871585341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7936435792920 + 7936435792921.

It is an arithmetic number, because the mean of its divisors is an integer number (7936435792921).

Almost surely, 2^{15872871585841} is an apocalyptic number.

It is an amenable number.

15872871585841 is a deficient number, since it is larger than the sum of its proper divisors (1).

15872871585841 is an equidigital number, since it uses as much as digits as its factorization.

15872871585841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 200704000, while the sum is 70.

The spelling of 15872871585841 in words is "fifteen trillion, eight hundred seventy-two billion, eight hundred seventy-one million, five hundred eighty-five thousand, eight hundred forty-one".