43227996578 has 54 divisors (see below), whose sum is σ = 72158731281. Its totient is φ = 19413300816.

The previous prime is 43227996577. The next prime is 43227996589. The reversal of 43227996578 is 87569972234.

It can be written as a sum of positive squares in 2 ways, for example, as 36961216009 + 6266780569 = 192253^2 + 79163^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=147017.

Its product of digits (45722880) is a multiple of the sum of its prime factors (640).

It is a self number, because there is not a number n which added to its sum of digits gives 43227996578.

It is not an unprimeable number, because it can be changed into a prime (43227996571) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 164364875 + ... + 164365137.

Almost surely, 2^43227996578 is an apocalyptic number.

43227996578 is a deficient number, since it is larger than the sum of its proper divisors (28930734703).

43227996578 is an equidigital number, since it uses as much as digits as its factorization.

43227996578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640 (or 321 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 62.

The spelling of 43227996578 in words is "forty-three billion, two hundred twenty-seven million, nine hundred ninety-six thousand, five hundred seventy-eight".