213445136421198 has 192 divisors, whose sum is σ = 517613171961600. Its totient is φ = 63024605107200.

The previous prime is 213445136421103. The next prime is 213445136421247. The reversal of 213445136421198 is 891124631544312.

213445136421198 is a `hidden beast` number, since 2 + 1 + 3 + 4 + 4 + 513 + 6 + 4 + 2 + 119 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 476144761 + ... + 476592827.

It is an arithmetic number, because the mean of its divisors is an integer number (2695901937300).

Almost surely, 2^{213445136421198} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213445136421198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258806585980800).

213445136421198 is an abundant number, since it is smaller than the sum of its proper divisors (304168035540402).

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

213445136421198 is a wasteful number, since it uses less digits than its factorization.

213445136421198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448543 (or 448540 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 54.

The spelling of 213445136421198 in words is "two hundred thirteen trillion, four hundred forty-five billion, one hundred thirty-six million, four hundred twenty-one thousand, one hundred ninety-eight".