485217081811872 has 36 divisors (see below), whose sum is σ = 1379836076403330. Its totient is φ = 161739027270528.

The previous prime is 485217081811849. The next prime is 485217081811907. The reversal of 485217081811872 is 278118180712584.

485217081811872 is a `hidden beast` number, since 4 + 8 + 521 + 7 + 0 + 8 + 18 + 11 + 87 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 484445558495376 + 771523316496 = 22010124^2 + 878364^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 842390766747 + ... + 842390767322.

Almost surely, 2^{485217081811872} is an apocalyptic number.

It is an amenable number.

485217081811872 is an abundant number, since it is smaller than the sum of its proper divisors (894618994591458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

485217081811872 is a wasteful number, since it uses less digits than its factorization.

485217081811872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684781534085 (or 1684781534074 counting only the distinct ones).

The product of its (nonzero) digits is 16056320, while the sum is 63.

The spelling of 485217081811872 in words is "four hundred eighty-five trillion, two hundred seventeen billion, eighty-one million, eight hundred eleven thousand, eight hundred seventy-two".