8516352498491 has 2 divisors, whose sum is σ = 8516352498492. Its totient is φ = 8516352498490.

The previous prime is 8516352498487. The next prime is 8516352498517. The reversal of 8516352498491 is 1948942536158.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8516352498491 - 2² = 8516352498487 is a prime.

It is not a weakly prime, because it can be changed into another prime (8516352498391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4258176249245 + 4258176249246.

It is an arithmetic number, because the mean of its divisors is an integer number (4258176249246).

Almost surely, 2^{8516352498491} is an apocalyptic number.

8516352498491 is a deficient number, since it is larger than the sum of its proper divisors (1).

8516352498491 is an equidigital number, since it uses as much as digits as its factorization.

8516352498491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 74649600, while the sum is 65.

The spelling of 8516352498491 in words is "eight trillion, five hundred sixteen billion, three hundred fifty-two million, four hundred ninety-eight thousand, four hundred ninety-one".