28731460317173 has 12 divisors (see below), whose sum is σ = 29760334131840. Its totient is φ = 27737018897616.

The previous prime is 28731460317167. The next prime is 28731460317223. The reversal of 28731460317173 is 37171306413782.

It is not a de Polignac number, because 28731460317173 - 2¹² = 28731460313077 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 (28731460317473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4037948 + ... + 8588826.

It is an arithmetic number, because the mean of its divisors is an integer number (2480027844320).

Almost surely, 2^{28731460317173} is an apocalyptic number.

It is an amenable number.

28731460317173 is a deficient number, since it is larger than the sum of its proper divisors (1028873814667).

28731460317173 is an equidigital number, since it uses as much as digits as its factorization.

28731460317173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4558444 (or 4558415 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 53.

The spelling of 28731460317173 in words is "twenty-eight trillion, seven hundred thirty-one billion, four hundred sixty million, three hundred seventeen thousand, one hundred seventy-three".