212188852078 has 8 divisors (see below), whose sum is σ = 363752317872. Its totient is φ = 90938079456.

The previous prime is 212188852063. The next prime is 212188852079. The reversal of 212188852078 is 870258881212.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212188852079) 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, 7578173275 + ... + 7578173302.

It is an arithmetic number, because the mean of its divisors is an integer number (45469039734).

Almost surely, 2^212188852078 is an apocalyptic number.

212188852078 is a deficient number, since it is larger than the sum of its proper divisors (151563465794).

212188852078 is a wasteful number, since it uses less digits than its factorization.

212188852078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15156346586.

The product of its (nonzero) digits is 1146880, while the sum is 52.

The spelling of 212188852078 in words is "two hundred twelve billion, one hundred eighty-eight million, eight hundred fifty-two thousand, seventy-eight".