28144553174 has 4 divisors (see below), whose sum is σ = 42216829764. Its totient is φ = 14072276586.

The previous prime is 28144553161. The next prime is 28144553219. The reversal of 28144553174 is 47135544182.

It is a happy number.

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

It is a super-2 number, since 2×28144553174² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 7036138292 + ... + 7036138295.

It is an arithmetic number, because the mean of its divisors is an integer number (10554207441).

Almost surely, 2^28144553174 is an apocalyptic number.

28144553174 is a deficient number, since it is larger than the sum of its proper divisors (14072276590).

28144553174 is a wasteful number, since it uses less digits than its factorization.

28144553174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14072276589.

The product of its digits is 537600, while the sum is 44.

The spelling of 28144553174 in words is "twenty-eight billion, one hundred forty-four million, five hundred fifty-three thousand, one hundred seventy-four".