28143146671 has 8 divisors (see below), whose sum is σ = 29245968000. Its totient is φ = 27052511520.

The previous prime is 28143146653. The next prime is 28143146699. The reversal of 28143146671 is 17664134182.

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

It is not a de Polignac number, because 28143146671 - 2⁵ = 28143146639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28143146971) 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, 3041836 + ... + 3051073.

It is an arithmetic number, because the mean of its divisors is an integer number (3655746000).

Almost surely, 2^28143146671 is an apocalyptic number.

28143146671 is a deficient number, since it is larger than the sum of its proper divisors (1102821329).

28143146671 is a wasteful number, since it uses less digits than its factorization.

28143146671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6093089.

The product of its digits is 193536, while the sum is 43.

The spelling of 28143146671 in words is "twenty-eight billion, one hundred forty-three million, one hundred forty-six thousand, six hundred seventy-one".