28368627591 has 8 divisors (see below), whose sum is σ = 37847533824. Its totient is φ = 18901069880.

The previous prime is 28368627577. The next prime is 28368627619. The reversal of 28368627591 is 19572686382.

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 28368627591 - 2¹⁴ = 28368611207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28368620591) 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, 2831295 + ... + 2841296.

It is an arithmetic number, because the mean of its divisors is an integer number (4730941728).

Almost surely, 2^28368627591 is an apocalyptic number.

28368627591 is a deficient number, since it is larger than the sum of its proper divisors (9478906233).

28368627591 is a wasteful number, since it uses less digits than its factorization.

28368627591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5674261.

The product of its digits is 8709120, while the sum is 57.

The spelling of 28368627591 in words is "twenty-eight billion, three hundred sixty-eight million, six hundred twenty-seven thousand, five hundred ninety-one".