213717745456 has 40 divisors (see below), whose sum is σ = 417243207920. Its totient is φ = 106045127424.

The previous prime is 213717745433. The next prime is 213717745463. The reversal of 213717745456 is 654547717312.

It is a happy number.

213717745456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×213717745456³ (a number of 35 digits) contains 333 as substring.

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, 1029850 + ... + 1219846.

It is an arithmetic number, because the mean of its divisors is an integer number (10431080198).

Almost surely, 2^213717745456 is an apocalyptic number.

It is an amenable number.

213717745456 is a deficient number, since it is larger than the sum of its proper divisors (203525462464).

213717745456 is a wasteful number, since it uses less digits than its factorization.

213717745456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190541 (or 190535 counting only the distinct ones).

The product of its digits is 4939200, while the sum is 52.

The spelling of 213717745456 in words is "two hundred thirteen billion, seven hundred seventeen million, seven hundred forty-five thousand, four hundred fifty-six".