212557027313 has 4 divisors (see below), whose sum is σ = 212574742080. Its totient is φ = 212539312548.

The previous prime is 212557027307. The next prime is 212557027327. The reversal of 212557027313 is 313720755212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212557027313 - 2¹⁰ = 212557026289 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (212557087313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8839373 + ... + 8863386.

It is an arithmetic number, because the mean of its divisors is an integer number (53143685520).

Almost surely, 2^212557027313 is an apocalyptic number.

It is an amenable number.

212557027313 is a deficient number, since it is larger than the sum of its proper divisors (17714767).

212557027313 is a wasteful number, since it uses less digits than its factorization.

212557027313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17714766.

The product of its (nonzero) digits is 88200, while the sum is 38.

The spelling of 212557027313 in words is "two hundred twelve billion, five hundred fifty-seven million, twenty-seven thousand, three hundred thirteen".