28715274147 has 12 divisors (see below), whose sum is σ = 44537976456. Its totient is φ = 16408728000.

The previous prime is 28715274131. The next prime is 28715274173. The reversal of 28715274147 is 74147251782.

It is not a de Polignac number, because 28715274147 - 2⁴ = 28715274131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28715274096 and 28715274105.

It is not an unprimeable number, because it can be changed into a prime (28715274647) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 97670854 + ... + 97671147.

It is an arithmetic number, because the mean of its divisors is an integer number (3711498038).

Almost surely, 2^28715274147 is an apocalyptic number.

28715274147 is a deficient number, since it is larger than the sum of its proper divisors (15822702309).

28715274147 is a wasteful number, since it uses less digits than its factorization.

28715274147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195342018 (or 195342011 counting only the distinct ones).

The product of its digits is 878080, while the sum is 48.

The spelling of 28715274147 in words is "twenty-eight billion, seven hundred fifteen million, two hundred seventy-four thousand, one hundred forty-seven".