32000243728 has 20 divisors (see below), whose sum is σ = 62053007148. Its totient is φ = 15986564480.

The previous prime is 32000243663. The next prime is 32000243729. The reversal of 32000243728 is 82734200023.

It can be written as a sum of positive squares in 2 ways, for example, as 22245125904 + 9755117824 = 149148^2 + 98768^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 32000243728.

It is not an unprimeable number, because it can be changed into a prime (32000243729) 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, 827851 + ... + 865642.

Almost surely, 2^32000243728 is an apocalyptic number.

It is an amenable number.

32000243728 is a deficient number, since it is larger than the sum of its proper divisors (30052763420).

32000243728 is a wasteful number, since it uses less digits than its factorization.

32000243728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694682 (or 1694676 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The spelling of 32000243728 in words is "thirty-two billion, two hundred forty-three thousand, seven hundred twenty-eight".