7928552813 has 2 divisors, whose sum is σ = 7928552814. Its totient is φ = 7928552812.

The previous prime is 7928552783. The next prime is 7928552833. The reversal of 7928552813 is 3182558297.

7928552813 = 62962² + 62963².

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., 3964339369 + 3964213444 = 62963^2 + 62962^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7928552813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7928552833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is an upside-down number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3964276406 + 3964276407.

It is an arithmetic number, because the mean of its divisors is an integer number (3964276407).

Almost surely, 2^7928552813 is an apocalyptic number.

7928552813 is the 62963-rd centered square number.

It is an amenable number.

7928552813 is a deficient number, since it is larger than the sum of its proper divisors (1).

7928552813 is an equidigital number, since it uses as much as digits as its factorization.

7928552813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1209600, while the sum is 50.

The square root of 7928552813 is about 89042.4214237236. The cubic root of 7928552813 is about 1994.0282546255.

The spelling of 7928552813 in words is "seven billion, nine hundred twenty-eight million, five hundred fifty-two thousand, eight hundred thirteen".