212868636373 has 4 divisors (see below), whose sum is σ = 212871208000. Its totient is φ = 212866064748.

The previous prime is 212868636353. The next prime is 212868636377. The reversal of 212868636373 is 373636868212.

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 212868636373 - 2²⁵ = 212835081941 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 (212868636377) 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, 1157373 + ... + 1328626.

It is an arithmetic number, because the mean of its divisors is an integer number (53217802000).

Almost surely, 2^212868636373 is an apocalyptic number.

It is an amenable number.

212868636373 is a deficient number, since it is larger than the sum of its proper divisors (2571627).

212868636373 is an equidigital number, since it uses as much as digits as its factorization.

212868636373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2571626.

The product of its digits is 10450944, while the sum is 55.

The spelling of 212868636373 in words is "two hundred twelve billion, eight hundred sixty-eight million, six hundred thirty-six thousand, three hundred seventy-three".