28110748722 has 16 divisors (see below), whose sum is σ = 64253140032. Its totient is φ = 8031642480.

The previous prime is 28110748711. The next prime is 28110748759. The reversal of 28110748722 is 22784701182.

It is a super-2 number, since 2×28110748722² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 669303541 = 28110748722 / (2 + 8 + 1 + 1 + 0 + 7 + 4 + 8 + 7 + 2 + 2).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 334651729 + ... + 334651812.

It is an arithmetic number, because the mean of its divisors is an integer number (4015821252).

Almost surely, 2^28110748722 is an apocalyptic number.

28110748722 is an abundant number, since it is smaller than the sum of its proper divisors (36142391310).

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

28110748722 is a wasteful number, since it uses less digits than its factorization.

28110748722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669303553.

The product of its (nonzero) digits is 100352, while the sum is 42.

The spelling of 28110748722 in words is "twenty-eight billion, one hundred ten million, seven hundred forty-eight thousand, seven hundred twenty-two".