28267787840293 has 8 divisors (see below), whose sum is σ = 30002032307520. Its totient is φ = 26541480419520.

The previous prime is 28267787840267. The next prime is 28267787840297. The reversal of 28267787840293 is 39204878776282.

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

It is a cyclic number.

It is not a de Polignac number, because 28267787840293 - 2²⁵ = 28267754285861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28267787840297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1984254273 + ... + 1984268518.

It is an arithmetic number, because the mean of its divisors is an integer number (3750254038440).

Almost surely, 2^{28267787840293} is an apocalyptic number.

It is an amenable number.

28267787840293 is a deficient number, since it is larger than the sum of its proper divisors (1734244467227).

28267787840293 is a wasteful number, since it uses less digits than its factorization.

28267787840293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3968523227.

The product of its (nonzero) digits is 910393344, while the sum is 73.

The spelling of 28267787840293 in words is "twenty-eight trillion, two hundred sixty-seven billion, seven hundred eighty-seven million, eight hundred forty thousand, two hundred ninety-three".