213333623694 has 32 divisors (see below), whose sum is σ = 474103418880. Its totient is φ = 71106903000.

The previous prime is 213333623693. The next prime is 213333623753. The reversal of 213333623694 is 496326333312.

213333623694 is a `hidden beast` number, since 2 + 13 + 3 + 3 + 3 + 623 + 6 + 9 + 4 = 666.

It is a super-2 number, since 2×213333623694² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213333623693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 853299 + ... + 1074609.

It is an arithmetic number, because the mean of its divisors is an integer number (14815731840).

Almost surely, 2^213333623694 is an apocalyptic number.

213333623694 is an abundant number, since it is smaller than the sum of its proper divisors (260769795186).

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

213333623694 is a wasteful number, since it uses less digits than its factorization.

213333623694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239173 (or 239167 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 45.

The spelling of 213333623694 in words is "two hundred thirteen billion, three hundred thirty-three million, six hundred twenty-three thousand, six hundred ninety-four".