28078088806 has 8 divisors (see below), whose sum is σ = 42489851544. Its totient is φ = 13914804960.

The previous prime is 28078088789. The next prime is 28078088837. The reversal of 28078088806 is 60888087082.

It is a happy number.

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, 62119440 + ... + 62119891.

It is an arithmetic number, because the mean of its divisors is an integer number (5311231443).

Almost surely, 2^28078088806 is an apocalyptic number.

28078088806 is a deficient number, since it is larger than the sum of its proper divisors (14411762738).

28078088806 is a wasteful number, since it uses less digits than its factorization.

28078088806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124239446.

The product of its (nonzero) digits is 2752512, while the sum is 55.

The spelling of 28078088806 in words is "twenty-eight billion, seventy-eight million, eighty-eight thousand, eight hundred six".