31728857316003 has 48 divisors (see below), whose sum is σ = 49427509491360. Its totient is φ = 19547290828800.

The previous prime is 31728857315983. The next prime is 31728857316011. The reversal of 31728857316003 is 30061375882713.

It is a happy number.

31728857316003 is a `hidden beast` number, since 3 + 1 + 7 + 2 + 8 + 8 + 573 + 1 + 60 + 0 + 3 = 666.

It is not a de Polignac number, because 31728857316003 - 2¹⁷ = 31728857184931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31728857314003) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42488083 + ... + 43228403.

It is an arithmetic number, because the mean of its divisors is an integer number (1029739781070).

Almost surely, 2^{31728857316003} is an apocalyptic number.

31728857316003 is a deficient number, since it is larger than the sum of its proper divisors (17698652175357).

31728857316003 is a wasteful number, since it uses less digits than its factorization.

31728857316003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746500 (or 746497 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 31728857316003 in words is "thirty-one trillion, seven hundred twenty-eight billion, eight hundred fifty-seven million, three hundred sixteen thousand, three".