8072442491 has 2 divisors, whose sum is σ = 8072442492. Its totient is φ = 8072442490.

The previous prime is 8072442479. The next prime is 8072442517. The reversal of 8072442491 is 1942442708.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8072442491 is a prime.

It is not a weakly prime, because it can be changed into another prime (8072442451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4036221245 + 4036221246.

It is an arithmetic number, because the mean of its divisors is an integer number (4036221246).

Almost surely, 2^8072442491 is an apocalyptic number.

8072442491 is a deficient number, since it is larger than the sum of its proper divisors (1).

8072442491 is an equidigital number, since it uses as much as digits as its factorization.

8072442491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 8072442491 is about 89846.7722903834. The cubic root of 8072442491 is about 2006.0187434445.

The spelling of 8072442491 in words is "eight billion, seventy-two million, four hundred forty-two thousand, four hundred ninety-one".