213815934380 has 24 divisors (see below), whose sum is σ = 449085946848. Its totient is φ = 85512567168.

The previous prime is 213815934377. The next prime is 213815934391. The reversal of 213815934380 is 83439518312.

213815934380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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, 735464 + ... + 984143.

It is an arithmetic number, because the mean of its divisors is an integer number (18711914452).

Almost surely, 2^213815934380 is an apocalyptic number.

213815934380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213815934380 is an abundant number, since it is smaller than the sum of its proper divisors (235270012468).

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

213815934380 is a wasteful number, since it uses less digits than its factorization.

213815934380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1725833 (or 1725831 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 213815934380 in words is "two hundred thirteen billion, eight hundred fifteen million, nine hundred thirty-four thousand, three hundred eighty".