7073866081 has 2 divisors, whose sum is σ = 7073866082. Its totient is φ = 7073866080.

The previous prime is 7073866057. The next prime is 7073866103. The reversal of 7073866081 is 1806683707.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6222685456 + 851180625 = 78884^2 + 29175^2 .

It is a cyclic number.

It is not a de Polignac number, because 7073866081 - 2¹⁵ = 7073833313 is a prime.

It is a super-2 number, since 2×7073866081² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7073866001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3536933040 + 3536933041.

It is an arithmetic number, because the mean of its divisors is an integer number (3536933041).

Almost surely, 2^7073866081 is an apocalyptic number.

It is an amenable number.

7073866081 is a deficient number, since it is larger than the sum of its proper divisors (1).

7073866081 is an equidigital number, since it uses as much as digits as its factorization.

7073866081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 7073866081 is about 84106.2784873995. The cubic root of 7073866081 is about 1919.6362593097.

The spelling of 7073866081 in words is "seven billion, seventy-three million, eight hundred sixty-six thousand, eighty-one".