213669455928 has 32 divisors (see below), whose sum is σ = 535261599360. Its totient is φ = 71078090720.

The previous prime is 213669455927. The next prime is 213669455971. The reversal of 213669455928 is 829554966312.

213669455928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213669455927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9054300 + ... + 9077867.

It is an arithmetic number, because the mean of its divisors is an integer number (16726924980).

Almost surely, 2^213669455928 is an apocalyptic number.

It is an amenable number.

213669455928 is an abundant number, since it is smaller than the sum of its proper divisors (321592143432).

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

213669455928 is a wasteful number, since it uses less digits than its factorization.

213669455928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18132667 (or 18132663 counting only the distinct ones).

The product of its digits is 27993600, while the sum is 60.

The spelling of 213669455928 in words is "two hundred thirteen billion, six hundred sixty-nine million, four hundred fifty-five thousand, nine hundred twenty-eight".