28143753123 has 16 divisors (see below), whose sum is σ = 38536176672. Its totient is φ = 18259200000.

The previous prime is 28143753091. The next prime is 28143753137. The reversal of 28143753123 is 32135734182.

It is not a de Polignac number, because 28143753123 - 2⁵ = 28143753091 is a prime.

It is a Lucas number.

It is not an unprimeable number, because it can be changed into a prime (28143753023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235978 + ... + 334623.

It is an arithmetic number, because the mean of its divisors is an integer number (2408511042).

Almost surely, 2^28143753123 is an apocalyptic number.

28143753123 is a deficient number, since it is larger than the sum of its proper divisors (10392423549).

28143753123 is a wasteful number, since it uses less digits than its factorization.

28143753123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571046.

The product of its digits is 120960, while the sum is 39.

The spelling of 28143753123 in words is "twenty-eight billion, one hundred forty-three million, seven hundred fifty-three thousand, one hundred twenty-three".