213184268772 has 24 divisors (see below), whose sum is σ = 497532427392. Its totient is φ = 71046784800.

The previous prime is 213184268771. The next prime is 213184268797. The reversal of 213184268772 is 277862481312.

It is a happy number.

213184268772 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (213184268771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1769004 + ... + 1885667.

It is an arithmetic number, because the mean of its divisors is an integer number (20730517808).

Almost surely, 2^213184268772 is an apocalyptic number.

It is an amenable number.

213184268772 is an abundant number, since it is smaller than the sum of its proper divisors (284348158620).

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

213184268772 is a wasteful number, since it uses less digits than its factorization.

213184268772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3659539 (or 3659537 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 51.

The spelling of 213184268772 in words is "two hundred thirteen billion, one hundred eighty-four million, two hundred sixty-eight thousand, seven hundred seventy-two".