1988375816496 has 40 divisors (see below), whose sum is σ = 5139169388080. Its totient is φ = 662465246976.

The previous prime is 1988375816443. The next prime is 1988375816513. The reversal of 1988375816496 is 6946185738891.

It is a super-3 number, since 3×1988375816496³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10110715 + ... + 10305498.

It is an arithmetic number, because the mean of its divisors is an integer number (128479234702).

Almost surely, 2^{1988375816496} is an apocalyptic number.

1988375816496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1988375816496 is an abundant number, since it is smaller than the sum of its proper divisors (3150793571584).

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

1988375816496 is a wasteful number, since it uses less digits than its factorization.

1988375816496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20418253 (or 20418247 counting only the distinct ones).

The product of its digits is 627056640, while the sum is 75.

The spelling of 1988375816496 in words is "one trillion, nine hundred eighty-eight billion, three hundred seventy-five million, eight hundred sixteen thousand, four hundred ninety-six".