28458968143 has 8 divisors (see below), whose sum is σ = 30029983200. Its totient is φ = 26915758848.

The previous prime is 28458968077. The next prime is 28458968177. The reversal of 28458968143 is 34186985482.

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 28458968143 - 2⁹ = 28458967631 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 (28458968443) 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, 6949338 + ... + 6953431.

It is an arithmetic number, because the mean of its divisors is an integer number (3753747900).

Almost surely, 2^28458968143 is an apocalyptic number.

28458968143 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

28458968143 is a deficient number, since it is larger than the sum of its proper divisors (1571015057).

28458968143 is a wasteful number, since it uses less digits than its factorization.

28458968143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13902881.

The product of its digits is 13271040, while the sum is 58.

The spelling of 28458968143 in words is "twenty-eight billion, four hundred fifty-eight million, nine hundred sixty-eight thousand, one hundred forty-three".