28717288602886 has 64 divisors (see below), whose sum is σ = 50946068577600. Its totient is φ = 12012542631936.

The previous prime is 28717288602809. The next prime is 28717288602913. The reversal of 28717288602886 is 68820688271782.

It is a super-2 number, since 2×28717288602886² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1902366 + ... + 7813678.

It is an arithmetic number, because the mean of its divisors is an integer number (796032321525).

Almost surely, 2^{28717288602886} is an apocalyptic number.

28717288602886 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28717288602886 is a deficient number, since it is larger than the sum of its proper divisors (22228779974714).

28717288602886 is a wasteful number, since it uses less digits than its factorization.

28717288602886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5911753.

The product of its (nonzero) digits is 462422016, while the sum is 73.

The spelling of 28717288602886 in words is "twenty-eight trillion, seven hundred seventeen billion, two hundred eighty-eight million, six hundred two thousand, eight hundred eighty-six".