879216973646 has 8 divisors (see below), whose sum is σ = 1438718684184. Its totient is φ = 399644078920.

The previous prime is 879216973601. The next prime is 879216973693. The reversal of 879216973646 is 646379612978.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19982203925 + ... + 19982203968.

It is an arithmetic number, because the mean of its divisors is an integer number (179839835523).

Almost surely, 2^879216973646 is an apocalyptic number.

879216973646 is a deficient number, since it is larger than the sum of its proper divisors (559501710538).

879216973646 is a wasteful number, since it uses less digits than its factorization.

879216973646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39964407906.

The product of its digits is 164602368, while the sum is 68.

The spelling of 879216973646 in words is "eight hundred seventy-nine billion, two hundred sixteen million, nine hundred seventy-three thousand, six hundred forty-six".