877843446489 has 9 divisors (see below), whose sum is σ = 1268000149429. Its totient is φ = 585227090460.

The previous prime is 877843446463. The next prime is 877843446547. The reversal of 877843446489 is 984644348778.

The square root of 877843446489 is 936933.

It is a perfect power (a square), and thus also a powerful number.

877843446489 is a `hidden beast` number, since 8 + 7 + 7 + 84 + 3 + 4 + 464 + 89 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 877843446489 - 2⁵ = 877843446457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (877843446289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2654644 + ... + 2966954.

Almost surely, 2^877843446489 is an apocalyptic number.

877843446489 is the 936933-rd square number.

877843446489 is the 468467-th centered octagonal number.

It is an amenable number.

877843446489 is a deficient number, since it is larger than the sum of its proper divisors (390156702940).

877843446489 is an frugal number, since it uses more digits than its factorization.

877843446489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624628 (or 312314 counting only the distinct ones).

The product of its digits is 1040449536, while the sum is 72.

The spelling of 877843446489 in words is "eight hundred seventy-seven billion, eight hundred forty-three million, four hundred forty-six thousand, four hundred eighty-nine".