28265144147 has 8 divisors (see below), whose sum is σ = 29498567040. Its totient is φ = 27048972160.

The previous prime is 28265144137. The next prime is 28265144203. The reversal of 28265144147 is 74144156282.

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 28265144147 - 2³⁰ = 27191402323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28265144098 and 28265144107.

It is not an unprimeable number, because it can be changed into a prime (28265144137) 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, 4309379 + ... + 4315932.

It is an arithmetic number, because the mean of its divisors is an integer number (3687320880).

Almost surely, 2^28265144147 is an apocalyptic number.

28265144147 is a deficient number, since it is larger than the sum of its proper divisors (1233422893).

28265144147 is a wasteful number, since it uses less digits than its factorization.

28265144147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8625453.

The product of its digits is 430080, while the sum is 44.

The spelling of 28265144147 in words is "twenty-eight billion, two hundred sixty-five million, one hundred forty-four thousand, one hundred forty-seven".