211835490564 has 12 divisors (see below), whose sum is σ = 494282811344. Its totient is φ = 70611830184.

The previous prime is 211835490563. The next prime is 211835490571. The reversal of 211835490564 is 465094538112.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (211835490563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8826478762 + ... + 8826478785.

Almost surely, 2^211835490564 is an apocalyptic number.

It is an amenable number.

211835490564 is an abundant number, since it is smaller than the sum of its proper divisors (282447320780).

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

211835490564 is a wasteful number, since it uses less digits than its factorization.

211835490564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17652957554 (or 17652957552 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 48.

The spelling of 211835490564 in words is "two hundred eleven billion, eight hundred thirty-five million, four hundred ninety thousand, five hundred sixty-four".