877565320832 has 16 divisors (see below), whose sum is σ = 1748274662850. Its totient is φ = 438782660352.

The previous prime is 877565320813. The next prime is 877565320943. The reversal of 877565320832 is 238023565778.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 875392269376 + 2173051456 = 935624^2 + 46616^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3427989407 + ... + 3427989662.

Almost surely, 2^877565320832 is an apocalyptic number.

It is an amenable number.

877565320832 is a deficient number, since it is larger than the sum of its proper divisors (870709342018).

877565320832 is an equidigital number, since it uses as much as digits as its factorization.

877565320832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6855979083 (or 6855979071 counting only the distinct ones).

The product of its (nonzero) digits is 16934400, while the sum is 56.

The spelling of 877565320832 in words is "eight hundred seventy-seven billion, five hundred sixty-five million, three hundred twenty thousand, eight hundred thirty-two".