28208364874 has 8 divisors (see below), whose sum is σ = 43677468288. Its totient is φ = 13649208780.

The previous prime is 28208364869. The next prime is 28208364887. The reversal of 28208364874 is 47846380282.

It is a happy number.

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, 227486752 + ... + 227486875.

It is an arithmetic number, because the mean of its divisors is an integer number (5459683536).

Almost surely, 2^28208364874 is an apocalyptic number.

28208364874 is a deficient number, since it is larger than the sum of its proper divisors (15469103414).

28208364874 is a wasteful number, since it uses less digits than its factorization.

28208364874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454973660.

The product of its (nonzero) digits is 4128768, while the sum is 52.

The spelling of 28208364874 in words is "twenty-eight billion, two hundred eight million, three hundred sixty-four thousand, eight hundred seventy-four".