1881975480660 has 768 divisors, whose sum is σ = 6707520691200. Its totient is φ = 434012774400.

The previous prime is 1881975480643. The next prime is 1881975480667. The reversal of 1881975480660 is 660845791881.

1881975480660 is a `hidden beast` number, since 1 + 8 + 8 + 1 + 97 + 5 + 480 + 6 + 60 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1881975480667) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 3070106514 + ... + 3070107126.

It is an arithmetic number, because the mean of its divisors is an integer number (8733750900).

Almost surely, 2^{1881975480660} is an apocalyptic number.

1881975480660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1881975480660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3353760345600).

1881975480660 is an abundant number, since it is smaller than the sum of its proper divisors (4825545210540).

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

1881975480660 is a wasteful number, since it uses less digits than its factorization.

1881975480660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969 (or 961 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 63.

The spelling of 1881975480660 in words is "one trillion, eight hundred eighty-one billion, nine hundred seventy-five million, four hundred eighty thousand, six hundred sixty".