163963852889 has 8 divisors (see below), whose sum is σ = 164712231552. Its totient is φ = 163216421280.

The previous prime is 163963852849. The next prime is 163963852961. The reversal of 163963852889 is 988258369361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163963852889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163963852849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111452 + ... + 583394.

It is an arithmetic number, because the mean of its divisors is an integer number (20589028944).

Almost surely, 2^163963852889 is an apocalyptic number.

It is an amenable number.

163963852889 is a deficient number, since it is larger than the sum of its proper divisors (748378663).

163963852889 is a wasteful number, since it uses less digits than its factorization.

163963852889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473527.

The product of its digits is 134369280, while the sum is 68.

The spelling of 163963852889 in words is "one hundred sixty-three billion, nine hundred sixty-three million, eight hundred fifty-two thousand, eight hundred eighty-nine".