1988971475482 has 32 divisors (see below), whose sum is σ = 3122096204304. Its totient is φ = 949479820800.

The previous prime is 1988971475459. The next prime is 1988971475483. The reversal of 1988971475482 is 2845741798891.

It is a Cunningham number, because it is equal to 1410309²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 305389969641 + 1683581505841 = 552621^2 + 1297529^2 .

It is not an unprimeable number, because it can be changed into a prime (1988971475483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23833 + ... + 1994620.

Almost surely, 2^{1988971475482} is an apocalyptic number.

1988971475482 is a deficient number, since it is larger than the sum of its proper divisors (1133124728822).

1988971475482 is a wasteful number, since it uses less digits than its factorization.

1988971475482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2018754.

The product of its digits is 325140480, while the sum is 73.

The spelling of 1988971475482 in words is "one trillion, nine hundred eighty-eight billion, nine hundred seventy-one million, four hundred seventy-five thousand, four hundred eighty-two".