213534327264 has 24 divisors (see below), whose sum is σ = 560527609320. Its totient is φ = 71178109056.

The previous prime is 213534327239. The next prime is 213534327269. The reversal of 213534327264 is 462723435312.

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213534327269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1112157859 + ... + 1112158050.

It is an arithmetic number, because the mean of its divisors is an integer number (23355317055).

Almost surely, 2^213534327264 is an apocalyptic number.

213534327264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

213534327264 is an abundant number, since it is smaller than the sum of its proper divisors (346993282056).

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

213534327264 is a wasteful number, since it uses less digits than its factorization.

213534327264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2224315922 (or 2224315914 counting only the distinct ones).

The product of its digits is 725760, while the sum is 42.

The spelling of 213534327264 in words is "two hundred thirteen billion, five hundred thirty-four million, three hundred twenty-seven thousand, two hundred sixty-four".