988827188785 has 4 divisors (see below), whose sum is σ = 1186592626548. Its totient is φ = 791061751024.

The previous prime is 988827188753. The next prime is 988827188813. The reversal of 988827188785 is 587881728889.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 557840190769 + 430986998016 = 746887^2 + 656496^2 .

It is a cyclic number.

It is not a de Polignac number, because 988827188785 - 2⁵ = 988827188753 is a prime.

It is a Duffinian 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, 98882718874 + ... + 98882718883.

It is an arithmetic number, because the mean of its divisors is an integer number (296648156637).

Almost surely, 2^988827188785 is an apocalyptic number.

It is an amenable number.

988827188785 is a deficient number, since it is larger than the sum of its proper divisors (197765437763).

988827188785 is a wasteful number, since it uses less digits than its factorization.

988827188785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197765437762.

The product of its digits is 1156055040, while the sum is 79.

The spelling of 988827188785 in words is "nine hundred eighty-eight billion, eight hundred twenty-seven million, one hundred eighty-eight thousand, seven hundred eighty-five".