8040191567 has 2 divisors, whose sum is σ = 8040191568. Its totient is φ = 8040191566.

The previous prime is 8040191521. The next prime is 8040191587. The reversal of 8040191567 is 7651910408.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8040191567 - 2³² = 3745224271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8040191587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4020095783 + 4020095784.

It is an arithmetic number, because the mean of its divisors is an integer number (4020095784).

Almost surely, 2^8040191567 is an apocalyptic number.

8040191567 is a deficient number, since it is larger than the sum of its proper divisors (1).

8040191567 is an equidigital number, since it uses as much as digits as its factorization.

8040191567 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 8040191567 is about 89667.1153043299. The cubic root of 8040191567 is about 2003.3437039566.

The spelling of 8040191567 in words is "eight billion, forty million, one hundred ninety-one thousand, five hundred sixty-seven".