28860028886 has 32 divisors (see below), whose sum is σ = 49439896128. Its totient is φ = 12516802560.

The previous prime is 28860028877. The next prime is 28860028889. The reversal of 28860028886 is 68882006882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28860028889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232391 + ... + 334253.

It is an arithmetic number, because the mean of its divisors is an integer number (1544996754).

Almost surely, 2^28860028886 is an apocalyptic number.

28860028886 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28860028886 is a deficient number, since it is larger than the sum of its proper divisors (20579867242).

28860028886 is a wasteful number, since it uses less digits than its factorization.

28860028886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102536.

The product of its (nonzero) digits is 4718592, while the sum is 56.

The spelling of 28860028886 in words is "twenty-eight billion, eight hundred sixty million, twenty-eight thousand, eight hundred eighty-six".