212686054784 has 32 divisors (see below), whose sum is σ = 484240573200. Its totient is φ = 91151165952.

The previous prime is 212686054771. The next prime is 212686054793. The reversal of 212686054784 is 487450686212.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118685519 + ... + 118687310.

Almost surely, 2^212686054784 is an apocalyptic number.

It is an amenable number.

212686054784 is an abundant number, since it is smaller than the sum of its proper divisors (271554518416).

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

212686054784 is an equidigital number, since it uses as much as digits as its factorization.

212686054784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237372850 (or 237372838 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 53.

The spelling of 212686054784 in words is "two hundred twelve billion, six hundred eighty-six million, fifty-four thousand, seven hundred eighty-four".