8124769898491 has 2 divisors, whose sum is σ = 8124769898492. Its totient is φ = 8124769898490.

The previous prime is 8124769898489. The next prime is 8124769898573. The reversal of 8124769898491 is 1948989674218.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8124769898491 - 2¹ = 8124769898489 is a prime.

Together with 8124769898489, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (8124769898471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4062384949245 + 4062384949246.

It is an arithmetic number, because the mean of its divisors is an integer number (4062384949246).

Almost surely, 2^{8124769898491} is an apocalyptic number.

8124769898491 is a deficient number, since it is larger than the sum of its proper divisors (1).

8124769898491 is an equidigital number, since it uses as much as digits as its factorization.

8124769898491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 501645312, while the sum is 76.

The spelling of 8124769898491 in words is "eight trillion, one hundred twenty-four billion, seven hundred sixty-nine million, eight hundred ninety-eight thousand, four hundred ninety-one".