28081627842 has 16 divisors (see below), whose sum is σ = 56194461792. Its totient is φ = 9355341600.

The previous prime is 28081627841. The next prime is 28081627867. The reversal of 28081627842 is 24872618082.

It is a junction number, because it is equal to n+sod(n) for n = 28081627791 and 28081627800.

It is not an unprimeable number, because it can be changed into a prime (28081627841) 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, 1288548 + ... + 1310159.

It is an arithmetic number, because the mean of its divisors is an integer number (3512153862).

Almost surely, 2^28081627842 is an apocalyptic number.

28081627842 is an abundant number, since it is smaller than the sum of its proper divisors (28112833950).

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

28081627842 is a wasteful number, since it uses less digits than its factorization.

28081627842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2600513.

The product of its (nonzero) digits is 688128, while the sum is 48.

The spelling of 28081627842 in words is "twenty-eight billion, eighty-one million, six hundred twenty-seven thousand, eight hundred forty-two".