28171470332 has 12 divisors (see below), whose sum is σ = 50135667960. Its totient is φ = 13846993776.

The previous prime is 28171470289. The next prime is 28171470401. The reversal of 28171470332 is 23307417182.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 59685083 + ... + 59685554.

It is an arithmetic number, because the mean of its divisors is an integer number (4177972330).

Almost surely, 2^28171470332 is an apocalyptic number.

It is an amenable number.

28171470332 is a deficient number, since it is larger than the sum of its proper divisors (21964197628).

28171470332 is a wasteful number, since it uses less digits than its factorization.

28171470332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119370700 (or 119370698 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 38.

The spelling of 28171470332 in words is "twenty-eight billion, one hundred seventy-one million, four hundred seventy thousand, three hundred thirty-two".