213272178108 has 48 divisors (see below), whose sum is σ = 566477888256. Its totient is φ = 61818021760.

The previous prime is 213272178089. The next prime is 213272178109. The reversal of 213272178108 is 801871272312.

It is a self number, because there is not a number n which added to its sum of digits gives 213272178108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213272178109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35120841 + ... + 35126912.

It is an arithmetic number, because the mean of its divisors is an integer number (11801622672).

Almost surely, 2^213272178108 is an apocalyptic number.

It is an amenable number.

213272178108 is an abundant number, since it is smaller than the sum of its proper divisors (353205710148).

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

213272178108 is a wasteful number, since it uses less digits than its factorization.

213272178108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70247794 (or 70247792 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 42.

The spelling of 213272178108 in words is "two hundred thirteen billion, two hundred seventy-two million, one hundred seventy-eight thousand, one hundred eight".