12007032728 has 8 divisors (see below), whose sum is σ = 22513186380. Its totient is φ = 6003516360.

The previous prime is 12007032673. The next prime is 12007032743. The reversal of 12007032728 is 82723070021.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 12007032694 and 12007032703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 750439538 + ... + 750439553.

Almost surely, 2^12007032728 is an apocalyptic number.

It is an amenable number.

12007032728 is a deficient number, since it is larger than the sum of its proper divisors (10506153652).

12007032728 is a wasteful number, since it uses less digits than its factorization.

12007032728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500879097 (or 1500879093 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The spelling of 12007032728 in words is "twelve billion, seven million, thirty-two thousand, seven hundred twenty-eight".