28062388887 has 8 divisors (see below), whose sum is σ = 40294712304. Its totient is φ = 17269162368.

The previous prime is 28062388873. The next prime is 28062388889. The reversal of 28062388887 is 78888326082.

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

It is not a de Polignac number, because 28062388887 - 2⁷ = 28062388759 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28062388887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28062388889) 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, 359774178 + ... + 359774255.

It is an arithmetic number, because the mean of its divisors is an integer number (5036839038).

Almost surely, 2^28062388887 is an apocalyptic number.

28062388887 is a deficient number, since it is larger than the sum of its proper divisors (12232323417).

28062388887 is a wasteful number, since it uses less digits than its factorization.

28062388887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719548449.

The product of its (nonzero) digits is 16515072, while the sum is 60.

The spelling of 28062388887 in words is "twenty-eight billion, sixty-two million, three hundred eighty-eight thousand, eight hundred eighty-seven".