163860479999 has 2 divisors, whose sum is σ = 163860480000. Its totient is φ = 163860479998.

The previous prime is 163860479947. The next prime is 163860480001. The reversal of 163860479999 is 999974068361.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163860479999 is a prime.

Together with 163860480001, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163860479929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81930239999 + 81930240000.

It is an arithmetic number, because the mean of its divisors is an integer number (81930240000).

Almost surely, 2^163860479999 is an apocalyptic number.

163860479999 is a deficient number, since it is larger than the sum of its proper divisors (1).

163860479999 is an equidigital number, since it uses as much as digits as its factorization.

163860479999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 158723712, while the sum is 71.

The spelling of 163860479999 in words is "one hundred sixty-three billion, eight hundred sixty million, four hundred seventy-nine thousand, nine hundred ninety-nine".