212068638780 has 48 divisors (see below), whose sum is σ = 593925986304. Its totient is φ = 56538894400.

The previous prime is 212068638739. The next prime is 212068638781. The reversal of 212068638780 is 87836860212.

It is a happy number.

212068638780 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212068638781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128196 + ... + 663755.

It is an arithmetic number, because the mean of its divisors is an integer number (12373458048).

Almost surely, 2^212068638780 is an apocalyptic number.

212068638780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212068638780 is an abundant number, since it is smaller than the sum of its proper divisors (381857347524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212068638780 is a wasteful number, since it uses less digits than its factorization.

212068638780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796426 (or 796424 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 51.

The spelling of 212068638780 in words is "two hundred twelve billion, sixty-eight million, six hundred thirty-eight thousand, seven hundred eighty".