7856352061 has 2 divisors, whose sum is σ = 7856352062. Its totient is φ = 7856352060.

The previous prime is 7856351999. The next prime is 7856352071. The reversal of 7856352061 is 1602536587.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4023999225 + 3832352836 = 63435^2 + 61906^2 .

It is an emirp because it is prime and its reverse (1602536587) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7856352061 - 2⁹ = 7856351549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7856351999 and 7856352017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7856352071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3928176030 + 3928176031.

It is an arithmetic number, because the mean of its divisors is an integer number (3928176031).

Almost surely, 2^7856352061 is an apocalyptic number.

It is an amenable number.

7856352061 is a deficient number, since it is larger than the sum of its proper divisors (1).

7856352061 is an equidigital number, since it uses as much as digits as its factorization.

7856352061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 302400, while the sum is 43.

The square root of 7856352061 is about 88636.0652387052. The cubic root of 7856352061 is about 1987.9569666452.

The spelling of 7856352061 in words is "seven billion, eight hundred fifty-six million, three hundred fifty-two thousand, sixty-one".