211944503468 has 24 divisors (see below), whose sum is σ = 373802990400. Its totient is φ = 105145214720.

The previous prime is 211944503467. The next prime is 211944503483. The reversal of 211944503468 is 864305449112.

It is not an unprimeable number, because it can be changed into a prime (211944503467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347780 + ... + 738132.

It is an arithmetic number, because the mean of its divisors is an integer number (15575124600).

Almost surely, 2^211944503468 is an apocalyptic number.

It is an amenable number.

211944503468 is a deficient number, since it is larger than the sum of its proper divisors (161858486932).

211944503468 is a wasteful number, since it uses less digits than its factorization.

211944503468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391417 (or 391415 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 211944503468 in words is "two hundred eleven billion, nine hundred forty-four million, five hundred three thousand, four hundred sixty-eight".