8004134777 has 2 divisors, whose sum is σ = 8004134778. Its totient is φ = 8004134776.

The previous prime is 8004134771. The next prime is 8004134813. The reversal of 8004134777 is 7774314008.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7883486521 + 120648256 = 88789^2 + 10984^2 .

It is a cyclic number.

It is not a de Polignac number, because 8004134777 - 2⁸ = 8004134521 is a prime.

It is not a weakly prime, because it can be changed into another prime (8004134771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4002067388 + 4002067389.

It is an arithmetic number, because the mean of its divisors is an integer number (4002067389).

Almost surely, 2^8004134777 is an apocalyptic number.

It is an amenable number.

8004134777 is a deficient number, since it is larger than the sum of its proper divisors (1).

8004134777 is an equidigital number, since it uses as much as digits as its factorization.

8004134777 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 131712, while the sum is 41.

The square root of 8004134777 is about 89465.8302202578. The cubic root of 8004134777 is about 2000.3445054046.

The spelling of 8004134777 in words is "eight billion, four million, one hundred thirty-four thousand, seven hundred seventy-seven".