28240634108293 has 8 divisors (see below), whose sum is σ = 29108322923328. Its totient is φ = 27382533015264.

The previous prime is 28240634108287. The next prime is 28240634108299. The reversal of 28240634108293 is 39280143604282.

It is an interprime number because it is at equal distance from previous prime (28240634108287) and next prime (28240634108299).

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 28240634108293 - 2²⁵ = 28240600553861 is a prime.

It is a super-3 number, since 3×28240634108293³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28240634108293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28240634108299) 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, 2396924521 + ... + 2396936302.

It is an arithmetic number, because the mean of its divisors is an integer number (3638540365416).

Almost surely, 2^{28240634108293} is an apocalyptic number.

It is an amenable number.

28240634108293 is a deficient number, since it is larger than the sum of its proper divisors (867688815035).

28240634108293 is a wasteful number, since it uses less digits than its factorization.

28240634108293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4793861003.

The product of its (nonzero) digits is 3981312, while the sum is 52.

The spelling of 28240634108293 in words is "twenty-eight trillion, two hundred forty billion, six hundred thirty-four million, one hundred eight thousand, two hundred ninety-three".