211950943919 has 16 divisors (see below), whose sum is σ = 249173686944. Its totient is φ = 177740659200.

The previous prime is 211950943871. The next prime is 211950943949. The reversal of 211950943919 is 919349059112.

It is a de Polignac number, because none of the positive numbers 2^k-211950943919 is a prime.

It is a super-2 number, since 2×211950943919² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211950943949) 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, 288614 + ... + 712179.

It is an arithmetic number, because the mean of its divisors is an integer number (15573355434).

Almost surely, 2^211950943919 is an apocalyptic number.

211950943919 is a deficient number, since it is larger than the sum of its proper divisors (37222743025).

211950943919 is a wasteful number, since it uses less digits than its factorization.

211950943919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002298.

The product of its (nonzero) digits is 787320, while the sum is 53.

The spelling of 211950943919 in words is "two hundred eleven billion, nine hundred fifty million, nine hundred forty-three thousand, nine hundred nineteen".