7148567989 has 2 divisors, whose sum is σ = 7148567990. Its totient is φ = 7148567988.

The previous prime is 7148567957. The next prime is 7148568023. The reversal of 7148567989 is 9897658417.

7148567989 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5164578225 + 1983989764 = 71865^2 + 44542^2 .

It is a cyclic number.

It is not a de Polignac number, because 7148567989 - 2⁵ = 7148567957 is a prime.

It is a super-2 number, since 2×7148567989² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7148567989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7148567929) 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, 3574283994 + 3574283995.

It is an arithmetic number, because the mean of its divisors is an integer number (3574283995).

Almost surely, 2^7148567989 is an apocalyptic number.

It is an amenable number.

7148567989 is a deficient number, since it is larger than the sum of its proper divisors (1).

7148567989 is an equidigital number, since it uses as much as digits as its factorization.

7148567989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30481920, while the sum is 64.

The square root of 7148567989 is about 84549.2045438631. The cubic root of 7148567989 is about 1926.3699015137.

The spelling of 7148567989 in words is "seven billion, one hundred forty-eight million, five hundred sixty-seven thousand, nine hundred eighty-nine".