28110621674 has 4 divisors (see below), whose sum is σ = 42165932514. Its totient is φ = 14055310836.

The previous prime is 28110621673. The next prime is 28110621697. The reversal of 28110621674 is 47612601182.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19369680625 + 8740941049 = 139175^2 + 93493^2 .

It is not an unprimeable number, because it can be changed into a prime (28110621673) by changing a digit.

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 as a sum of consecutive naturals, namely, 7027655417 + ... + 7027655420.

Almost surely, 2^28110621674 is an apocalyptic number.

28110621674 is a deficient number, since it is larger than the sum of its proper divisors (14055310840).

28110621674 is a wasteful number, since it uses less digits than its factorization.

28110621674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14055310839.

The product of its (nonzero) digits is 32256, while the sum is 38.

The spelling of 28110621674 in words is "twenty-eight billion, one hundred ten million, six hundred twenty-one thousand, six hundred seventy-four".