1979916163 has 8 divisors (see below), whose sum is σ = 1987130880. Its totient is φ = 1972714440.

The previous prime is 1979916151. The next prime is 1979916181. The reversal of 1979916163 is 3616199791.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1979916163 - 2⁵ = 1979916131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1979916163.

It is not an unprimeable number, because it can be changed into a prime (1979926163) 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, 379708 + ... + 384886.

It is an arithmetic number, because the mean of its divisors is an integer number (248391360).

Almost surely, 2^1979916163 is an apocalyptic number.

1979916163 is a deficient number, since it is larger than the sum of its proper divisors (7214717).

1979916163 is an equidigital number, since it uses as much as digits as its factorization.

1979916163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6497.

The product of its digits is 551124, while the sum is 52.

The square root of 1979916163 is about 44496.2488643706. The cubic root of 1979916163 is about 1255.6895123756.

The spelling of 1979916163 in words is "one billion, nine hundred seventy-nine million, nine hundred sixteen thousand, one hundred sixty-three".