28432906016 has 24 divisors (see below), whose sum is σ = 56032174044. Its totient is φ = 14202512640.

The previous prime is 28432905997. The next prime is 28432906031. The reversal of 28432906016 is 61060923482.

It can be written as a sum of positive squares in 2 ways, for example, as 28222656016 + 210250000 = 167996^2 + 14500^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402455 + ... + 467798.

Almost surely, 2^28432906016 is an apocalyptic number.

It is an amenable number.

28432906016 is a deficient number, since it is larger than the sum of its proper divisors (27599268028).

28432906016 is a wasteful number, since it uses less digits than its factorization.

28432906016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871284 (or 871276 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The spelling of 28432906016 in words is "twenty-eight billion, four hundred thirty-two million, nine hundred six thousand, sixteen".