1988809458484 has 12 divisors (see below), whose sum is σ = 3496911419008. Its totient is φ = 989691910200.

The previous prime is 1988809458479. The next prime is 1988809458521. The reversal of 1988809458484 is 4848549088891.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1988809458484.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1178203812 + ... + 1178205499.

Almost surely, 2^{1988809458484} is an apocalyptic number.

It is an amenable number.

1988809458484 is a deficient number, since it is larger than the sum of its proper divisors (1508101960524).

1988809458484 is a wasteful number, since it uses less digits than its factorization.

1988809458484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2356409526 (or 2356409524 counting only the distinct ones).

The product of its (nonzero) digits is 849346560, while the sum is 76.

The spelling of 1988809458484 in words is "one trillion, nine hundred eighty-eight billion, eight hundred nine million, four hundred fifty-eight thousand, four hundred eighty-four".