28753774118 has 8 divisors (see below), whose sum is σ = 43131385440. Its totient is φ = 14376645640.

The previous prime is 28753774111. The next prime is 28753774123. The reversal of 28753774118 is 81147735782.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 28753774118.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28753774111) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 146243 + ... + 280881.

It is an arithmetic number, because the mean of its divisors is an integer number (5391423180).

Almost surely, 2^28753774118 is an apocalyptic number.

28753774118 is a deficient number, since it is larger than the sum of its proper divisors (14377611322).

28753774118 is a wasteful number, since it uses less digits than its factorization.

28753774118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241422.

The product of its digits is 2634240, while the sum is 53.

The spelling of 28753774118 in words is "twenty-eight billion, seven hundred fifty-three million, seven hundred seventy-four thousand, one hundred eighteen".