879491507546 has 4 divisors (see below), whose sum is σ = 1319237261322. Its totient is φ = 439745753772.

The previous prime is 879491507473. The next prime is 879491507563. The reversal of 879491507546 is 645705194978.

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., 861545958025 + 17945549521 = 928195^2 + 133961^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219872876885 + ... + 219872876888.

Almost surely, 2^879491507546 is an apocalyptic number.

879491507546 is a deficient number, since it is larger than the sum of its proper divisors (439745753776).

879491507546 is a wasteful number, since it uses less digits than its factorization.

879491507546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439745753775.

The product of its (nonzero) digits is 76204800, while the sum is 65.

The spelling of 879491507546 in words is "eight hundred seventy-nine billion, four hundred ninety-one million, five hundred seven thousand, five hundred forty-six".