28654187005 has 8 divisors (see below), whose sum is σ = 34390458072. Its totient is φ = 22919727168.

The previous prime is 28654186999. The next prime is 28654187017. The reversal of 28654187005 is 50078145682.

It can be written as a sum of positive squares in 4 ways, for example, as 1924225956 + 26729961049 = 43866^2 + 163493^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28654187005 - 2³ = 28654186997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417754 + ... + 481483.

It is an arithmetic number, because the mean of its divisors is an integer number (4298807259).

Almost surely, 2^28654187005 is an apocalyptic number.

It is an amenable number.

28654187005 is a deficient number, since it is larger than the sum of its proper divisors (5736271067).

28654187005 is an equidigital number, since it uses as much as digits as its factorization.

28654187005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905615.

The product of its (nonzero) digits is 537600, while the sum is 46.

The spelling of 28654187005 in words is "twenty-eight billion, six hundred fifty-four million, one hundred eighty-seven thousand, five".