7128923077 has 2 divisors, whose sum is σ = 7128923078. Its totient is φ = 7128923076.

The previous prime is 7128923041. The next prime is 7128923083. The reversal of 7128923077 is 7703298217.

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., 4357848196 + 2771074881 = 66014^2 + 52641^2 .

It is a cyclic number.

It is not a de Polignac number, because 7128923077 - 2²⁷ = 6994705349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7128923017) 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, 3564461538 + 3564461539.

It is an arithmetic number, because the mean of its divisors is an integer number (3564461539).

Almost surely, 2^7128923077 is an apocalyptic number.

It is an amenable number.

7128923077 is a deficient number, since it is larger than the sum of its proper divisors (1).

7128923077 is an equidigital number, since it uses as much as digits as its factorization.

7128923077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 296352, while the sum is 46.

The square root of 7128923077 is about 84432.9501853394. The cubic root of 7128923077 is about 1924.6036696408.

The spelling of 7128923077 in words is "seven billion, one hundred twenty-eight million, nine hundred twenty-three thousand, seventy-seven".