211386316749444 has 24 divisors (see below), whose sum is σ = 548038598980320. Its totient is φ = 70462105583112.

The previous prime is 211386316749409. The next prime is 211386316749479. The reversal of 211386316749444 is 444947613683112.

211386316749444 is a `hidden beast` number, since 2 + 1 + 1 + 3 + 86 + 3 + 1 + 67 + 494 + 4 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (211386316749409) and next prime (211386316749479).

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 7 ways as a sum of consecutive naturals, for example, 978640355214 + ... + 978640355429.

It is an arithmetic number, because the mean of its divisors is an integer number (22834941624180).

Almost surely, 2^{211386316749444} is an apocalyptic number.

It is an amenable number.

211386316749444 is an abundant number, since it is smaller than the sum of its proper divisors (336652282230876).

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

211386316749444 is a wasteful number, since it uses less digits than its factorization.

211386316749444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1957280710656 (or 1957280710648 counting only the distinct ones).

The product of its digits is 83607552, while the sum is 63.

The spelling of 211386316749444 in words is "two hundred eleven trillion, three hundred eighty-six billion, three hundred sixteen million, seven hundred forty-nine thousand, four hundred forty-four".