32145030728 has 16 divisors (see below), whose sum is σ = 61554314880. Its totient is φ = 15730546768.

The previous prime is 32145030727. The next prime is 32145030733. The reversal of 32145030728 is 82703054123.

It is not an unprimeable number, because it can be changed into a prime (32145030727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42745676 + ... + 42746427.

It is an arithmetic number, because the mean of its divisors is an integer number (3847144680).

Almost surely, 2^32145030728 is an apocalyptic number.

It is an amenable number.

32145030728 is a deficient number, since it is larger than the sum of its proper divisors (29409284152).

32145030728 is a wasteful number, since it uses less digits than its factorization.

32145030728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85492156 (or 85492152 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The spelling of 32145030728 in words is "thirty-two billion, one hundred forty-five million, thirty thousand, seven hundred twenty-eight".