879135217874 has 4 divisors (see below), whose sum is σ = 1318702826814. Its totient is φ = 439567608936.

The previous prime is 879135217853. The next prime is 879135217897. The reversal of 879135217874 is 478712531978.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 795494529025 + 83640688849 = 891905^2 + 289207^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219783804467 + ... + 219783804470.

Almost surely, 2^879135217874 is an apocalyptic number.

879135217874 is a deficient number, since it is larger than the sum of its proper divisors (439567608940).

879135217874 is a wasteful number, since it uses less digits than its factorization.

879135217874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439567608939.

The product of its digits is 23708160, while the sum is 62.

The spelling of 879135217874 in words is "eight hundred seventy-nine billion, one hundred thirty-five million, two hundred seventeen thousand, eight hundred seventy-four".