28025255278 has 8 divisors (see below), whose sum is σ = 42197723568. Its totient is φ = 13959347424.

The previous prime is 28025255243. The next prime is 28025255287. The reversal of 28025255278 is 87255252082.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26639451 + ... + 26640502.

It is an arithmetic number, because the mean of its divisors is an integer number (5274715446).

Almost surely, 2^28025255278 is an apocalyptic number.

28025255278 is a deficient number, since it is larger than the sum of its proper divisors (14172468290).

28025255278 is a wasteful number, since it uses less digits than its factorization.

28025255278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53280218.

The product of its (nonzero) digits is 896000, while the sum is 46.

The spelling of 28025255278 in words is "twenty-eight billion, twenty-five million, two hundred fifty-five thousand, two hundred seventy-eight".