7738728163 has 2 divisors, whose sum is σ = 7738728164. Its totient is φ = 7738728162.

The previous prime is 7738728157. The next prime is 7738728197. The reversal of 7738728163 is 3618278377.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7738728163 - 2⁵ = 7738728131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7738728163.

It is not a weakly prime, because it can be changed into another prime (7738728133) 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, 3869364081 + 3869364082.

It is an arithmetic number, because the mean of its divisors is an integer number (3869364082).

Almost surely, 2^7738728163 is an apocalyptic number.

7738728163 is a deficient number, since it is larger than the sum of its proper divisors (1).

7738728163 is an equidigital number, since it uses as much as digits as its factorization.

7738728163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2370816, while the sum is 52.

The square root of 7738728163 is about 87970.0412811089. The cubic root of 7738728163 is about 1977.9859262321.

It can be divided in two parts, 773872 and 8163, that multiplied together give a palindrome (6317117136).

The spelling of 7738728163 in words is "seven billion, seven hundred thirty-eight million, seven hundred twenty-eight thousand, one hundred sixty-three".