28078703194 has 8 divisors (see below), whose sum is σ = 42120422208. Its totient is φ = 14038562460.

The previous prime is 28078703119. The next prime is 28078703231. The reversal of 28078703194 is 49130787082.

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

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, 349042 + ... + 421885.

It is an arithmetic number, because the mean of its divisors is an integer number (5265052776).

Almost surely, 2^28078703194 is an apocalyptic number.

28078703194 is a deficient number, since it is larger than the sum of its proper divisors (14041719014).

28078703194 is a wasteful number, since it uses less digits than its factorization.

28078703194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789140.

The product of its (nonzero) digits is 677376, while the sum is 49.

The spelling of 28078703194 in words is "twenty-eight billion, seventy-eight million, seven hundred three thousand, one hundred ninety-four".