1988916825320 has 16 divisors (see below), whose sum is σ = 4475062857060. Its totient is φ = 795566730112.

The previous prime is 1988916825263. The next prime is 1988916825331. The reversal of 1988916825320 is 235286198891.

It can be written as a sum of positive squares in 2 ways, for example, as 1744993444324 + 243923380996 = 1320982^2 + 493886^2 .

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, 24861460277 + ... + 24861460356.

Almost surely, 2^{1988916825320} is an apocalyptic number.

1988916825320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1988916825320 is an abundant number, since it is smaller than the sum of its proper divisors (2486146031740).

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

1988916825320 is a wasteful number, since it uses less digits than its factorization.

1988916825320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49722920644 (or 49722920640 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 62.

The spelling of 1988916825320 in words is "one trillion, nine hundred eighty-eight billion, nine hundred sixteen million, eight hundred twenty-five thousand, three hundred twenty".