28398476158 has 16 divisors (see below), whose sum is σ = 45878643216. Its totient is φ = 13105794240.

The previous prime is 28398476147. The next prime is 28398476203. The reversal of 28398476158 is 85167489382.

It is a junction number, because it is equal to n+sod(n) for n = 28398476096 and 28398476105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282873 + ... + 369883.

It is an arithmetic number, because the mean of its divisors is an integer number (2867415201).

Almost surely, 2^28398476158 is an apocalyptic number.

28398476158 is a deficient number, since it is larger than the sum of its proper divisors (17480167058).

28398476158 is a wasteful number, since it uses less digits than its factorization.

28398476158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99579.

The product of its digits is 23224320, while the sum is 61.

The spelling of 28398476158 in words is "twenty-eight billion, three hundred ninety-eight million, four hundred seventy-six thousand, one hundred fifty-eight".