108901086854491 has 2 divisors, whose sum is σ = 108901086854492. Its totient is φ = 108901086854490.

The previous prime is 108901086854467. The next prime is 108901086854557. The reversal of 108901086854491 is 194458680109801.

It is a weak prime.

It is an emirp because it is prime and its reverse (194458680109801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 108901086854491 - 2⁵ = 108901086854459 is a prime.

It is not a weakly prime, because it can be changed into another prime (108901086854291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54450543427245 + 54450543427246.

It is an arithmetic number, because the mean of its divisors is an integer number (54450543427246).

Almost surely, 2^{108901086854491} is an apocalyptic number.

108901086854491 is a deficient number, since it is larger than the sum of its proper divisors (1).

108901086854491 is an equidigital number, since it uses as much as digits as its factorization.

108901086854491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19906560, while the sum is 64.

The spelling of 108901086854491 in words is "one hundred eight trillion, nine hundred one billion, eighty-six million, eight hundred fifty-four thousand, four hundred ninety-one".