28140871146 has 8 divisors (see below), whose sum is σ = 56281742304. Its totient is φ = 9380290380.

The previous prime is 28140871093. The next prime is 28140871153. The reversal of 28140871146 is 64117804182.

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

28140871146 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 28140871098 and 28140871107.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2345072590 + ... + 2345072601.

It is an arithmetic number, because the mean of its divisors is an integer number (7035217788).

Almost surely, 2^28140871146 is an apocalyptic number.

28140871146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28140871146 is a wasteful number, since it uses less digits than its factorization.

28140871146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4690145196.

The product of its (nonzero) digits is 86016, while the sum is 42.

The spelling of 28140871146 in words is "twenty-eight billion, one hundred forty million, eight hundred seventy-one thousand, one hundred forty-six".