213538853696028 has 96 divisors (see below), whose sum is σ = 582990775589376. Its totient is φ = 59560419889152.

The previous prime is 213538853696011. The next prime is 213538853696029. The reversal of 213538853696028 is 820696358835312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213538853696029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9016701 + ... + 22547252.

It is an arithmetic number, because the mean of its divisors is an integer number (6072820579056).

Almost surely, 2^{213538853696028} is an apocalyptic number.

213538853696028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

213538853696028 is an abundant number, since it is smaller than the sum of its proper divisors (369451921893348).

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

213538853696028 is a wasteful number, since it uses less digits than its factorization.

213538853696028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31565883 (or 31565881 counting only the distinct ones).

The product of its (nonzero) digits is 447897600, while the sum is 69.

The spelling of 213538853696028 in words is "two hundred thirteen trillion, five hundred thirty-eight billion, eight hundred fifty-three million, six hundred ninety-six thousand, twenty-eight".