28551372488 has 16 divisors (see below), whose sum is σ = 53747109360. Its totient is φ = 14218810000.

The previous prime is 28551372463. The next prime is 28551372491. The reversal of 28551372488 is 88427315582.

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, 7107398 + ... + 7111413.

It is an arithmetic number, because the mean of its divisors is an integer number (3359194335).

Almost surely, 2^28551372488 is an apocalyptic number.

It is an amenable number.

28551372488 is a deficient number, since it is larger than the sum of its proper divisors (25195736872).

28551372488 is a wasteful number, since it uses less digits than its factorization.

28551372488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14219068 (or 14219064 counting only the distinct ones).

The product of its digits is 4300800, while the sum is 53.

The spelling of 28551372488 in words is "twenty-eight billion, five hundred fifty-one million, three hundred seventy-two thousand, four hundred eighty-eight".