1988702725660 has 48 divisors (see below), whose sum is σ = 4810468368384. Its totient is φ = 676472102208.

The previous prime is 1988702725657. The next prime is 1988702725673. The reversal of 1988702725660 is 665272078891.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55907494 + ... + 55943053.

It is an arithmetic number, because the mean of its divisors is an integer number (100218091008).

Almost surely, 2^{1988702725660} is an apocalyptic number.

1988702725660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1988702725660 is an abundant number, since it is smaller than the sum of its proper divisors (2821765642724).

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

1988702725660 is a wasteful number, since it uses less digits than its factorization.

1988702725660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111850690 (or 111850688 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 61.

The spelling of 1988702725660 in words is "one trillion, nine hundred eighty-eight billion, seven hundred two million, seven hundred twenty-five thousand, six hundred sixty".