43628628812 has 24 divisors (see below), whose sum is σ = 76521209856. Its totient is φ = 21765464208.

The previous prime is 43628628811. The next prime is 43628628821. The reversal of 43628628812 is 21882682634.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (43628628811) 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, 8066213 + ... + 8071619.

It is an arithmetic number, because the mean of its divisors is an integer number (3188383744).

Almost surely, 2^43628628812 is an apocalyptic number.

It is an amenable number.

43628628812 is a deficient number, since it is larger than the sum of its proper divisors (32892581044).

43628628812 is a wasteful number, since it uses less digits than its factorization.

43628628812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9557 (or 9555 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 50.

The spelling of 43628628812 in words is "forty-three billion, six hundred twenty-eight million, six hundred twenty-eight thousand, eight hundred twelve".