28040004122198 has 16 divisors (see below), whose sum is σ = 44282769070320. Its totient is φ = 13279383710496.

The previous prime is 28040004122183. The next prime is 28040004122209. The reversal of 28040004122198 is 89122140004082.

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, 75465161 + ... + 75835812.

It is an arithmetic number, because the mean of its divisors is an integer number (2767673066895).

Almost surely, 2^{28040004122198} is an apocalyptic number.

28040004122198 is a deficient number, since it is larger than the sum of its proper divisors (16242764948122).

28040004122198 is a wasteful number, since it uses less digits than its factorization.

28040004122198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151305871.

The product of its (nonzero) digits is 73728, while the sum is 41.

The spelling of 28040004122198 in words is "twenty-eight trillion, forty billion, four million, one hundred twenty-two thousand, one hundred ninety-eight".