28604331432 has 96 divisors (see below), whose sum is σ = 85093070400. Its totient is φ = 8640200448.

The previous prime is 28604331421. The next prime is 28604331449. The reversal of 28604331432 is 23413340682.

28604331432 is a `hidden beast` number, since 2 + 8 + 604 + 3 + 3 + 1 + 43 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 423093 + ... + 486020.

It is an arithmetic number, because the mean of its divisors is an integer number (886386150).

Almost surely, 2^28604331432 is an apocalyptic number.

It is an amenable number.

28604331432 is an abundant number, since it is smaller than the sum of its proper divisors (56488738968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28604331432 is a wasteful number, since it uses less digits than its factorization.

28604331432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909167 (or 909160 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 28604331432 in words is "twenty-eight billion, six hundred four million, three hundred thirty-one thousand, four hundred thirty-two".