28551681006 has 16 divisors (see below), whose sum is σ = 57128358144. Its totient is φ = 9513060984.

The previous prime is 28551681001. The next prime is 28551681013. The reversal of 28551681006 is 60018615582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28551681001) 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, 1026640 + ... + 1054083.

It is an arithmetic number, because the mean of its divisors is an integer number (3570522384).

Almost surely, 2^28551681006 is an apocalyptic number.

28551681006 is an abundant number, since it is smaller than the sum of its proper divisors (28576677138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28551681006 is a wasteful number, since it uses less digits than its factorization.

28551681006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2083015.

The product of its (nonzero) digits is 115200, while the sum is 42.

It can be divided in two parts, 2855 and 1681006, that added together give a palindrome (1683861).

The spelling of 28551681006 in words is "twenty-eight billion, five hundred fifty-one million, six hundred eighty-one thousand, six".