879820171776 has 640 divisors, whose sum is σ = 3231153192960. Its totient is φ = 230171590656.

The previous prime is 879820171729. The next prime is 879820171807. The reversal of 879820171776 is 677171028978.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 159761215 + ... + 159766721.

It is an arithmetic number, because the mean of its divisors is an integer number (5048676864).

Almost surely, 2^879820171776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 879820171776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1615576596480).

879820171776 is an abundant number, since it is smaller than the sum of its proper divisors (2351333021184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

879820171776 is a wasteful number, since it uses less digits than its factorization.

879820171776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5681 (or 5659 counting only the distinct ones).

The product of its (nonzero) digits is 16595712, while the sum is 63.

The spelling of 879820171776 in words is "eight hundred seventy-nine billion, eight hundred twenty million, one hundred seventy-one thousand, seven hundred seventy-six".