28186680527994 has 8 divisors (see below), whose sum is σ = 56373361056000. Its totient is φ = 9395560175996.

The previous prime is 28186680527959. The next prime is 28186680528011. The reversal of 28186680527994 is 49972508668182.

It is a sphenic number, since it is the product of 3 distinct primes.

28186680527994 is an admirable number.

It is a super-2 number, since 2×28186680527994² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2348890043994 + ... + 2348890044005.

It is an arithmetic number, because the mean of its divisors is an integer number (7046670132000).

Almost surely, 2^{28186680527994} is an apocalyptic number.

28186680527994 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28186680527994 is a wasteful number, since it uses less digits than its factorization.

28186680527994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4697780088004.

The product of its (nonzero) digits is 836075520, while the sum is 75.

The spelling of 28186680527994 in words is "twenty-eight trillion, one hundred eighty-six billion, six hundred eighty million, five hundred twenty-seven thousand, nine hundred ninety-four".