28158316147 has 8 divisors (see below), whose sum is σ = 30330813744. Its totient is φ = 25986743328.

The previous prime is 28158316133. The next prime is 28158316187. The reversal of 28158316147 is 74161385182.

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

It is a de Polignac number, because none of the positive numbers 2^k-28158316147 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28158316097 and 28158316106.

It is not an unprimeable number, because it can be changed into a prime (28158316117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167293 + ... + 290350.

It is an arithmetic number, because the mean of its divisors is an integer number (3791351718).

Almost surely, 2^28158316147 is an apocalyptic number.

28158316147 is a deficient number, since it is larger than the sum of its proper divisors (2172497597).

28158316147 is a wasteful number, since it uses less digits than its factorization.

28158316147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462389.

The product of its digits is 322560, while the sum is 46.

The spelling of 28158316147 in words is "twenty-eight billion, one hundred fifty-eight million, three hundred sixteen thousand, one hundred forty-seven".