28726368654500 has 96 divisors (see below), whose sum is σ = 68901222499200. Its totient is φ = 10375844880000.

The previous prime is 28726368654491. The next prime is 28726368654553. The reversal of 28726368654500 is 545686362782.

It is a happy 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, 16707266 + ... + 18346265.

It is an arithmetic number, because the mean of its divisors is an integer number (717721067700).

Almost surely, 2^{28726368654500} is an apocalyptic number.

28726368654500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28726368654500 is an abundant number, since it is smaller than the sum of its proper divisors (40174853844700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28726368654500 is a wasteful number, since it uses less digits than its factorization.

28726368654500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35053710 (or 35053698 counting only the distinct ones).

The product of its (nonzero) digits is 116121600, while the sum is 62.

The spelling of 28726368654500 in words is "twenty-eight trillion, seven hundred twenty-six billion, three hundred sixty-eight million, six hundred fifty-four thousand, five hundred".