7872871658633 has 2 divisors, whose sum is σ = 7872871658634. Its totient is φ = 7872871658632.

The previous prime is 7872871658573. The next prime is 7872871658723. The reversal of 7872871658633 is 3368561782787.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7783893541369 + 88978117264 = 2789963^2 + 298292^2 .

It is a cyclic number.

It is not a de Polignac number, because 7872871658633 - 2⁶ = 7872871658569 is a prime.

It is not a weakly prime, because it can be changed into another prime (7872871658033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3936435829316 + 3936435829317.

It is an arithmetic number, because the mean of its divisors is an integer number (3936435829317).

Almost surely, 2^{7872871658633} is an apocalyptic number.

It is an amenable number.

7872871658633 is a deficient number, since it is larger than the sum of its proper divisors (1).

7872871658633 is an equidigital number, since it uses as much as digits as its factorization.

7872871658633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 568995840, while the sum is 71.

The spelling of 7872871658633 in words is "seven trillion, eight hundred seventy-two billion, eight hundred seventy-one million, six hundred fifty-eight thousand, six hundred thirty-three".