212346790628 has 144 divisors (see below), whose sum is σ = 471114838656. Its totient is φ = 83179514880.

The previous prime is 212346790619. The next prime is 212346790633. The reversal of 212346790628 is 826097643212.

212346790628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15843626 + ... + 15857022.

It is an arithmetic number, because the mean of its divisors is an integer number (3271630824).

Almost surely, 2^212346790628 is an apocalyptic number.

212346790628 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212346790628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235557419328).

212346790628 is an abundant number, since it is smaller than the sum of its proper divisors (258768048028).

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

212346790628 is a wasteful number, since it uses less digits than its factorization.

212346790628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13570 (or 13561 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 212346790628 in words is "two hundred twelve billion, three hundred forty-six million, seven hundred ninety thousand, six hundred twenty-eight".