212339627987 has 4 divisors (see below), whose sum is σ = 212379524280. Its totient is φ = 212299731696.

The previous prime is 212339627953. The next prime is 212339628019. The reversal of 212339627987 is 789726933212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212339627987 - 2¹⁰ = 212339626963 is a prime.

It is a super-2 number, since 2×212339627987² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212339627917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19940162 + ... + 19950807.

It is an arithmetic number, because the mean of its divisors is an integer number (53094881070).

Almost surely, 2^212339627987 is an apocalyptic number.

212339627987 is a deficient number, since it is larger than the sum of its proper divisors (39896293).

212339627987 is an equidigital number, since it uses as much as digits as its factorization.

212339627987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39896292.

The product of its digits is 13716864, while the sum is 59.

The spelling of 212339627987 in words is "two hundred twelve billion, three hundred thirty-nine million, six hundred twenty-seven thousand, nine hundred eighty-seven".