43128568736 has 24 divisors (see below), whose sum is σ = 92628404064. Its totient is φ = 19603894720.

The previous prime is 43128568733. The next prime is 43128568739. The reversal of 43128568736 is 63786582134.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (43128568733) and next prime (43128568739).

It is not an unprimeable number, because it can be changed into a prime (43128568733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61261820 + ... + 61262523.

It is an arithmetic number, because the mean of its divisors is an integer number (3859516836).

Almost surely, 2^43128568736 is an apocalyptic number.

It is an amenable number.

43128568736 is an abundant number, since it is smaller than the sum of its proper divisors (49499835328).

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

43128568736 is a wasteful number, since it uses less digits than its factorization.

43128568736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122524364 (or 122524356 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 53.

The spelling of 43128568736 in words is "forty-three billion, one hundred twenty-eight million, five hundred sixty-eight thousand, seven hundred thirty-six".