879856959277 has 4 divisors (see below), whose sum is σ = 880720411680. Its totient is φ = 878993506876.

The previous prime is 879856959271. The next prime is 879856959299. The reversal of 879856959277 is 772959658978.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-879856959277 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 879856959277.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (879856959271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 431724673 + ... + 431726710.

It is an arithmetic number, because the mean of its divisors is an integer number (220180102920).

Almost surely, 2^879856959277 is an apocalyptic number.

It is an amenable number.

879856959277 is a deficient number, since it is larger than the sum of its proper divisors (863452403).

879856959277 is a wasteful number, since it uses less digits than its factorization.

879856959277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863452402.

The product of its digits is 4800902400, while the sum is 82.

The spelling of 879856959277 in words is "eight hundred seventy-nine billion, eight hundred fifty-six million, nine hundred fifty-nine thousand, two hundred seventy-seven".