7890016061 has 2 divisors, whose sum is σ = 7890016062. Its totient is φ = 7890016060.

The previous prime is 7890016039. The next prime is 7890016073. The reversal of 7890016061 is 1606100987.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6379216900 + 1510799161 = 79870^2 + 38869^2 .

It is a cyclic number.

It is not a de Polignac number, because 7890016061 - 2⁶ = 7890015997 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7890016961) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3945008030 + 3945008031.

It is an arithmetic number, because the mean of its divisors is an integer number (3945008031).

Almost surely, 2^7890016061 is an apocalyptic number.

It is an amenable number.

7890016061 is a deficient number, since it is larger than the sum of its proper divisors (1).

7890016061 is an equidigital number, since it uses as much as digits as its factorization.

7890016061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 7890016061 is about 88825.7623721857. The cubic root of 7890016061 is about 1990.7923463600.

The spelling of 7890016061 in words is "seven billion, eight hundred ninety million, sixteen thousand, sixty-one".