213551288194 has 8 divisors (see below), whose sum is σ = 339169693068. Its totient is φ = 100494723840.

The previous prime is 213551288113. The next prime is 213551288207. The reversal of 213551288194 is 491882155312.

213551288194 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 213513305625 + 37982569 = 462075^2 + 6163^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 3140460087 + ... + 3140460154.

Almost surely, 2^213551288194 is an apocalyptic number.

213551288194 is a deficient number, since it is larger than the sum of its proper divisors (125618404874).

213551288194 is a wasteful number, since it uses less digits than its factorization.

213551288194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6280920260.

The product of its digits is 691200, while the sum is 49.

The spelling of 213551288194 in words is "two hundred thirteen billion, five hundred fifty-one million, two hundred eighty-eight thousand, one hundred ninety-four".