1980881215488 has 560 divisors, whose sum is σ = 6981907198464. Its totient is φ = 547669278720.

The previous prime is 1980881215447. The next prime is 1980881215507. The reversal of 1980881215488 is 8845121880891.

1980881215488 is a `hidden beast` number, since 1 + 9 + 8 + 0 + 8 + 81 + 2 + 1 + 548 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 143983906 + ... + 143997662.

Almost surely, 2^{1980881215488} is an apocalyptic number.

1980881215488 is a gapful number since it is divisible by the number (18) 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 1980881215488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3490953599232).

1980881215488 is an abundant number, since it is smaller than the sum of its proper divisors (5001025982976).

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

1980881215488 is an equidigital number, since it uses as much as digits as its factorization.

1980881215488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13833 (or 13800 counting only the distinct ones).

The product of its (nonzero) digits is 11796480, while the sum is 63.

The spelling of 1980881215488 in words is "one trillion, nine hundred eighty billion, eight hundred eighty-one million, two hundred fifteen thousand, four hundred eighty-eight".