7728140201 has 2 divisors, whose sum is σ = 7728140202. Its totient is φ = 7728140200.

The previous prime is 7728140159. The next prime is 7728140207. The reversal of 7728140201 is 1020418277.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7603840000 + 124300201 = 87200^2 + 11149^2 .

It is an emirp because it is prime and its reverse (1020418277) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7728140201 - 2⁶ = 7728140137 is a prime.

It is not a weakly prime, because it can be changed into another prime (7728140207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3864070100 + 3864070101.

It is an arithmetic number, because the mean of its divisors is an integer number (3864070101).

Almost surely, 2^7728140201 is an apocalyptic number.

It is an amenable number.

7728140201 is a deficient number, since it is larger than the sum of its proper divisors (1).

7728140201 is an equidigital number, since it uses as much as digits as its factorization.

7728140201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 7728140201 is about 87909.8413205257. The cubic root of 7728140201 is about 1977.0834352013.

Adding to 7728140201 its reverse (1020418277), we get a palindrome (8748558478).

The spelling of 7728140201 in words is "seven billion, seven hundred twenty-eight million, one hundred forty thousand, two hundred one".