212516518399 has 8 divisors (see below), whose sum is σ = 213504966720. Its totient is φ = 211528596000.

The previous prime is 212516518381. The next prime is 212516518463. The reversal of 212516518399 is 993815615212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212516518399 - 2⁹ = 212516517887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212516518199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 690474 + ... + 949624.

It is an arithmetic number, because the mean of its divisors is an integer number (26688120840).

Almost surely, 2^212516518399 is an apocalyptic number.

212516518399 is a deficient number, since it is larger than the sum of its proper divisors (988448321).

212516518399 is a wasteful number, since it uses less digits than its factorization.

212516518399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262961.

The product of its digits is 1166400, while the sum is 52.

The spelling of 212516518399 in words is "two hundred twelve billion, five hundred sixteen million, five hundred eighteen thousand, three hundred ninety-nine".