28031108110208 has 32 divisors (see below), whose sum is σ = 63820826502960. Its totient is φ = 12013332046848.

The previous prime is 28031108110193. The next prime is 28031108110223. The reversal of 28031108110208 is 80201180113082.

It is an interprime number because it is at equal distance from previous prime (28031108110193) and next prime (28031108110223).

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

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, 15642358541 + ... + 15642360332.

Almost surely, 2^{28031108110208} is an apocalyptic number.

28031108110208 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28031108110208 is an abundant number, since it is smaller than the sum of its proper divisors (35789718392752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28031108110208 is an equidigital number, since it uses as much as digits as its factorization.

28031108110208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31284718894 (or 31284718882 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 35.

The spelling of 28031108110208 in words is "twenty-eight trillion, thirty-one billion, one hundred eight million, one hundred ten thousand, two hundred eight".