28775000254 has 32 divisors (see below), whose sum is σ = 57952452096. Its totient is φ = 10348650720.

The previous prime is 28775000237. The next prime is 28775000257. The reversal of 28775000254 is 45200057782.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28775000257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7184562 + ... + 7188565.

It is an arithmetic number, because the mean of its divisors is an integer number (1811014128).

Almost surely, 2^28775000254 is an apocalyptic number.

28775000254 is an abundant number, since it is smaller than the sum of its proper divisors (29177451842).

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

28775000254 is a wasteful number, since it uses less digits than its factorization.

28775000254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14373160.

The product of its (nonzero) digits is 156800, while the sum is 40.

The spelling of 28775000254 in words is "twenty-eight billion, seven hundred seventy-five million, two hundred fifty-four", and thus it is an aban number.