211345409884 has 12 divisors (see below), whose sum is σ = 422690819824. Its totient is φ = 90576604224.

The previous prime is 211345409857. The next prime is 211345409909. The reversal of 211345409884 is 488904543112.

211345409884 is an admirable number.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3774025149 + ... + 3774025204.

Almost surely, 2^211345409884 is an apocalyptic number.

It is an amenable number.

211345409884 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

211345409884 is a wasteful number, since it uses less digits than its factorization.

211345409884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7548050364 (or 7548050362 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 49.

The spelling of 211345409884 in words is "two hundred eleven billion, three hundred forty-five million, four hundred nine thousand, eight hundred eighty-four".