104781163999 has 2 divisors, whose sum is σ = 104781164000. Its totient is φ = 104781163998.

The previous prime is 104781163997. The next prime is 104781164039. The reversal of 104781163999 is 999361187401.

It is a weak prime.

It is an emirp because it is prime and its reverse (999361187401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 104781163999 - 2¹ = 104781163997 is a prime.

Together with 104781163997, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104781163997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52390581999 + 52390582000.

It is an arithmetic number, because the mean of its divisors is an integer number (52390582000).

Almost surely, 2^104781163999 is an apocalyptic number.

104781163999 is a deficient number, since it is larger than the sum of its proper divisors (1).

104781163999 is an equidigital number, since it uses as much as digits as its factorization.

104781163999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2939328, while the sum is 58.

The spelling of 104781163999 in words is "one hundred four billion, seven hundred eighty-one million, one hundred sixty-three thousand, nine hundred ninety-nine".