28340002947 has 16 divisors (see below), whose sum is σ = 38491205760. Its totient is φ = 18542136000.

The previous prime is 28340002939. The next prime is 28340002979. The reversal of 28340002947 is 74920004382.

It is not a de Polignac number, because 28340002947 - 2³ = 28340002939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28340002927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26829 + ... + 239582.

It is an arithmetic number, because the mean of its divisors is an integer number (2405700360).

Almost surely, 2^28340002947 is an apocalyptic number.

28340002947 is a deficient number, since it is larger than the sum of its proper divisors (10151202813).

28340002947 is a wasteful number, since it uses less digits than its factorization.

28340002947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267074.

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 28340002947 in words is "twenty-eight billion, three hundred forty million, two thousand, nine hundred forty-seven".