28188762098 has 32 divisors (see below), whose sum is σ = 49023823104. Its totient is φ = 11906099712.

The previous prime is 28188762089. The next prime is 28188762157. The reversal of 28188762098 is 89026788182.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1386986 + ... + 1407162.

It is an arithmetic number, because the mean of its divisors is an integer number (1531994472).

Almost surely, 2^28188762098 is an apocalyptic number.

28188762098 is a deficient number, since it is larger than the sum of its proper divisors (20835061006).

28188762098 is a wasteful number, since it uses less digits than its factorization.

28188762098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21626.

The product of its (nonzero) digits is 6193152, while the sum is 59.

The spelling of 28188762098 in words is "twenty-eight billion, one hundred eighty-eight million, seven hundred sixty-two thousand, ninety-eight".