213897798312 has 64 divisors (see below), whose sum is σ = 599124081600. Its totient is φ = 63065687040.

The previous prime is 213897798271. The next prime is 213897798341.

213897798312 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10939137 + ... + 10958672.

It is an arithmetic number, because the mean of its divisors is an integer number (9361313775).

Almost surely, 2^213897798312 is an apocalyptic number.

213897798312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

213897798312 is an abundant number, since it is smaller than the sum of its proper divisors (385226283288).

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

213897798312 is a wasteful number, since it uses less digits than its factorization.

213897798312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21897866 (or 21897862 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 60.

The spelling of 213897798312 in words is "two hundred thirteen billion, eight hundred ninety-seven million, seven hundred ninety-eight thousand, three hundred twelve".