28727843758 has 8 divisors (see below), whose sum is σ = 44577688680. Its totient is φ = 13868614200.

The previous prime is 28727843741. The next prime is 28727843759. The reversal of 28727843758 is 85734872782.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 28727843696 and 28727843705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28727843759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247653768 + ... + 247653883.

It is an arithmetic number, because the mean of its divisors is an integer number (5572211085).

Almost surely, 2^28727843758 is an apocalyptic number.

28727843758 is a deficient number, since it is larger than the sum of its proper divisors (15849844922).

28727843758 is a wasteful number, since it uses less digits than its factorization.

28727843758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495307682.

The product of its digits is 42147840, while the sum is 61.

The spelling of 28727843758 in words is "twenty-eight billion, seven hundred twenty-seven million, eight hundred forty-three thousand, seven hundred fifty-eight".