163979231127 has 8 divisors (see below), whose sum is σ = 225691845120. Its totient is φ = 105793052280.

The previous prime is 163979231083. The next prime is 163979231149. The reversal of 163979231127 is 721132979361.

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

It is not a de Polignac number, because 163979231127 - 2²⁰ = 163978182551 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 163979231127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163979231167) 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, 881608677 + ... + 881608862.

It is an arithmetic number, because the mean of its divisors is an integer number (28211480640).

Almost surely, 2^163979231127 is an apocalyptic number.

163979231127 is a deficient number, since it is larger than the sum of its proper divisors (61712613993).

163979231127 is a wasteful number, since it uses less digits than its factorization.

163979231127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1763217573.

The product of its digits is 857304, while the sum is 51.

The spelling of 163979231127 in words is "one hundred sixty-three billion, nine hundred seventy-nine million, two hundred thirty-one thousand, one hundred twenty-seven".