7141947889 has 2 divisors, whose sum is σ = 7141947890. Its totient is φ = 7141947888.

The previous prime is 7141947881. The next prime is 7141947899. The reversal of 7141947889 is 9887491417.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5187600625 + 1954347264 = 72025^2 + 44208^2 .

It is a cyclic number.

It is not a de Polignac number, because 7141947889 - 2³ = 7141947881 is a prime.

It is not a weakly prime, because it can be changed into another prime (7141947881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3570973944 + 3570973945.

It is an arithmetic number, because the mean of its divisors is an integer number (3570973945).

Almost surely, 2^7141947889 is an apocalyptic number.

It is an amenable number.

7141947889 is a deficient number, since it is larger than the sum of its proper divisors (1).

7141947889 is an equidigital number, since it uses as much as digits as its factorization.

7141947889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4064256, while the sum is 58.

The square root of 7141947889 is about 84510.0460832912. The cubic root of 7141947889 is about 1925.7750644267.

The spelling of 7141947889 in words is "seven billion, one hundred forty-one million, nine hundred forty-seven thousand, eight hundred eighty-nine".