7860512161 has 2 divisors, whose sum is σ = 7860512162. Its totient is φ = 7860512160.

The previous prime is 7860512113. The next prime is 7860512171. The reversal of 7860512161 is 1612150687.

7860512161 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4085638561 + 3774873600 = 63919^2 + 61440^2 .

It is a cyclic number.

It is not a de Polignac number, because 7860512161 - 2¹¹ = 7860510113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7860512161.

It is not a weakly prime, because it can be changed into another prime (7860512111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3930256080 + 3930256081.

It is an arithmetic number, because the mean of its divisors is an integer number (3930256081).

Almost surely, 2^7860512161 is an apocalyptic number.

It is an amenable number.

7860512161 is a deficient number, since it is larger than the sum of its proper divisors (1).

7860512161 is an equidigital number, since it uses as much as digits as its factorization.

7860512161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 7860512161 is about 88659.5294426944. The cubic root of 7860512161 is about 1988.3077927629.

The spelling of 7860512161 in words is "seven billion, eight hundred sixty million, five hundred twelve thousand, one hundred sixty-one".