28286249693184 has 156 divisors (see below), whose sum is σ = 93378123560176. Its totient is φ = 8081785552896.

The previous prime is 28286249693183. The next prime is 28286249693197. The reversal of 28286249693184 is 48139694268282.

28286249693184 is a `hidden beast` number, since 2 + 8 + 2 + 8 + 6 + 249 + 69 + 318 + 4 = 666.

It is a super-2 number, since 2×28286249693184² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28286249693183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54550069 + ... + 55066164.

Almost surely, 2^{28286249693184} is an apocalyptic number.

28286249693184 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28286249693184 is an abundant number, since it is smaller than the sum of its proper divisors (65091873866992).

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

28286249693184 is a wasteful number, since it uses less digits than its factorization.

28286249693184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109616270 (or 109616245 counting only the distinct ones).

The product of its digits is 573308928, while the sum is 72.

The spelling of 28286249693184 in words is "twenty-eight trillion, two hundred eighty-six billion, two hundred forty-nine million, six hundred ninety-three thousand, one hundred eighty-four".