8043956069 has 2 divisors, whose sum is σ = 8043956070. Its totient is φ = 8043956068.

The previous prime is 8043956057. The next prime is 8043956077. The reversal of 8043956069 is 9606593408.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7896455044 + 147501025 = 88862^2 + 12145^2 .

It is a cyclic number.

It is not a de Polignac number, because 8043956069 - 2⁸ = 8043955813 is a prime.

It is a super-2 number, since 2×8043956069² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8043956369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4021978034 + 4021978035.

It is an arithmetic number, because the mean of its divisors is an integer number (4021978035).

Almost surely, 2^8043956069 is an apocalyptic number.

It is an amenable number.

8043956069 is a deficient number, since it is larger than the sum of its proper divisors (1).

8043956069 is an equidigital number, since it uses as much as digits as its factorization.

8043956069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1399680, while the sum is 50.

The square root of 8043956069 is about 89688.1043896012. The cubic root of 8043956069 is about 2003.6563173484.

The spelling of 8043956069 in words is "eight billion, forty-three million, nine hundred fifty-six thousand, sixty-nine".