211428748368 has 80 divisors (see below), whose sum is σ = 610269422400. Its totient is φ = 70082501760.

The previous prime is 211428748367. The next prime is 211428748373. The reversal of 211428748368 is 863847824112.

211428748368 is a `hidden beast` number, since 2 + 11 + 428 + 74 + 83 + 68 = 666.

211428748368 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211428748367) 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, 1289763 + ... + 1444418.

It is an arithmetic number, because the mean of its divisors is an integer number (7628367780).

Almost surely, 2^211428748368 is an apocalyptic number.

It is an amenable number.

211428748368 is an abundant number, since it is smaller than the sum of its proper divisors (398840674032).

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

211428748368 is a wasteful number, since it uses less digits than its factorization.

211428748368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2734377 (or 2734365 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 54.

The spelling of 211428748368 in words is "two hundred eleven billion, four hundred twenty-eight million, seven hundred forty-eight thousand, three hundred sixty-eight".