5027878670921 has 2 divisors, whose sum is σ = 5027878670922. Its totient is φ = 5027878670920.

The previous prime is 5027878670917. The next prime is 5027878670963. The reversal of 5027878670921 is 1290768787205.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4646887280896 + 380991390025 = 2155664^2 + 617245^2 .

It is a cyclic number.

It is not a de Polignac number, because 5027878670921 - 2² = 5027878670917 is a prime.

It is not a weakly prime, because it can be changed into another prime (5027872670921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2513939335460 + 2513939335461.

It is an arithmetic number, because the mean of its divisors is an integer number (2513939335461).

Almost surely, 2^{5027878670921} is an apocalyptic number.

It is an amenable number.

5027878670921 is a deficient number, since it is larger than the sum of its proper divisors (1).

5027878670921 is an equidigital number, since it uses as much as digits as its factorization.

5027878670921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23708160, while the sum is 62.

The spelling of 5027878670921 in words is "five trillion, twenty-seven billion, eight hundred seventy-eight million, six hundred seventy thousand, nine hundred twenty-one".