211461587334 has 64 divisors (see below), whose sum is σ = 519189626880. Its totient is φ = 63456497280.

The previous prime is 211461587327. The next prime is 211461587347. The reversal of 211461587334 is 433785164112.

211461587334 is a `hidden beast` number, since 2 + 1 + 1 + 4 + 61 + 587 + 3 + 3 + 4 = 666.

211461587334 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 211461587334.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 4986502 + ... + 5028729.

It is an arithmetic number, because the mean of its divisors is an integer number (8112337920).

Almost surely, 2^211461587334 is an apocalyptic number.

211461587334 is an abundant number, since it is smaller than the sum of its proper divisors (307728039546).

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

211461587334 is a wasteful number, since it uses less digits than its factorization.

211461587334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10015282 (or 10015276 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The spelling of 211461587334 in words is "two hundred eleven billion, four hundred sixty-one million, five hundred eighty-seven thousand, three hundred thirty-four".