87416583178212 has 36 divisors (see below), whose sum is σ = 222582613871436. Its totient is φ = 28926168641280.

The previous prime is 87416583178189. The next prime is 87416583178277. The reversal of 87416583178212 is 21287138561478.

87416583178212 is a `hidden beast` number, since 8 + 7 + 4 + 16 + 583 + 17 + 8 + 21 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 66548004028416 + 20868579149796 = 8157696^2 + 4568214^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 87416583178212.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8862179089 + ... + 8862188952.

Almost surely, 2^{87416583178212} is an apocalyptic number.

It is an amenable number.

87416583178212 is an abundant number, since it is smaller than the sum of its proper divisors (135166030693224).

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

87416583178212 is a wasteful number, since it uses less digits than its factorization.

87416583178212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17724368188 (or 17724368183 counting only the distinct ones).

The product of its digits is 36126720, while the sum is 63.

The spelling of 87416583178212 in words is "eighty-seven trillion, four hundred sixteen billion, five hundred eighty-three million, one hundred seventy-eight thousand, two hundred twelve".