28605426072 has 32 divisors (see below), whose sum is σ = 71524147200. Its totient is φ = 9533731104.

The previous prime is 28605426067. The next prime is 28605426103. The reversal of 28605426072 is 27062450682.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84273 + ... + 253599.

It is an arithmetic number, because the mean of its divisors is an integer number (2235129600).

Almost surely, 2^28605426072 is an apocalyptic number.

It is an amenable number.

28605426072 is an abundant number, since it is smaller than the sum of its proper divisors (42918721128).

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

28605426072 is a wasteful number, since it uses less digits than its factorization.

28605426072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176375 (or 176371 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 28605426072 in words is "twenty-eight billion, six hundred five million, four hundred twenty-six thousand, seventy-two".