28806853746 has 64 divisors (see below), whose sum is σ = 66321192960. Its totient is φ = 8255955840.

The previous prime is 28806853739. The next prime is 28806853763. The reversal of 28806853746 is 64735860882.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28491 + ... + 241713.

It is an arithmetic number, because the mean of its divisors is an integer number (1036268640).

Almost surely, 2^28806853746 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28806853746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33160596480).

28806853746 is an abundant number, since it is smaller than the sum of its proper divisors (37514339214).

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

28806853746 is a wasteful number, since it uses less digits than its factorization.

28806853746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213351.

The product of its (nonzero) digits is 15482880, while the sum is 57.

The spelling of 28806853746 in words is "twenty-eight billion, eight hundred six million, eight hundred fifty-three thousand, seven hundred forty-six".