28676331680217 has 16 divisors (see below), whose sum is σ = 41790842345280. Its totient is φ = 17383585678272.

The previous prime is 28676331680197. The next prime is 28676331680219. The reversal of 28676331680217 is 71208613367682.

It is a happy number.

It is not a de Polignac number, because 28676331680217 - 2⁷ = 28676331680089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28676331680219) 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, 5487240342 + ... + 5487245567.

It is an arithmetic number, because the mean of its divisors is an integer number (2611927646580).

Almost surely, 2^{28676331680217} is an apocalyptic number.

It is an amenable number.

28676331680217 is a deficient number, since it is larger than the sum of its proper divisors (13114510665063).

28676331680217 is a wasteful number, since it uses less digits than its factorization.

28676331680217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10974485992.

The product of its (nonzero) digits is 24385536, while the sum is 60.

The spelling of 28676331680217 in words is "twenty-eight trillion, six hundred seventy-six billion, three hundred thirty-one million, six hundred eighty thousand, two hundred seventeen".