212683388435 has 48 divisors (see below), whose sum is σ = 328020342336. Its totient is φ = 131293274112.

The previous prime is 212683388399. The next prime is 212683388447. The reversal of 212683388435 is 534883386212.

212683388435 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212683388435 - 2¹⁶ = 212683322899 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1014302 + ... + 1205891.

It is an arithmetic number, because the mean of its divisors is an integer number (6833757132).

Almost surely, 2^212683388435 is an apocalyptic number.

212683388435 is a deficient number, since it is larger than the sum of its proper divisors (115336953901).

212683388435 is a wasteful number, since it uses less digits than its factorization.

212683388435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2220252 (or 2220245 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 53.

The spelling of 212683388435 in words is "two hundred twelve billion, six hundred eighty-three million, three hundred eighty-eight thousand, four hundred thirty-five".