28731600173143 has 24 divisors (see below), whose sum is σ = 35529883539120. Its totient is φ = 23099924131200.

The previous prime is 28731600173137. The next prime is 28731600173231. The reversal of 28731600173143 is 34137100613782.

It is not a de Polignac number, because 28731600173143 - 2²⁹ = 28731063302231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28731600173093 and 28731600173102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28731600174143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 152683246 + ... + 152871307.

It is an arithmetic number, because the mean of its divisors is an integer number (1480411814130).

Almost surely, 2^{28731600173143} is an apocalyptic number.

28731600173143 is a deficient number, since it is larger than the sum of its proper divisors (6798283365977).

28731600173143 is a wasteful number, since it uses less digits than its factorization.

28731600173143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305554687 (or 305554680 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 28731600173143 in words is "twenty-eight trillion, seven hundred thirty-one billion, six hundred million, one hundred seventy-three thousand, one hundred forty-three".