7728140159 has 2 divisors, whose sum is σ = 7728140160. Its totient is φ = 7728140158.

The previous prime is 7728140149. The next prime is 7728140201. The reversal of 7728140159 is 9510418277.

It is a weak prime.

It is an emirp because it is prime and its reverse (9510418277) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7728140159 - 2³² = 3433172863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7728140149) 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, 3864070079 + 3864070080.

It is an arithmetic number, because the mean of its divisors is an integer number (3864070080).

Almost surely, 2^7728140159 is an apocalyptic number.

7728140159 is a deficient number, since it is larger than the sum of its proper divisors (1).

7728140159 is an equidigital number, since it uses as much as digits as its factorization.

7728140159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 44.

The square root of 7728140159 is about 87909.8410816446. The cubic root of 7728140159 is about 1977.0834316196.

The spelling of 7728140159 in words is "seven billion, seven hundred twenty-eight million, one hundred forty thousand, one hundred fifty-nine".