1331481919488 has 480 divisors, whose sum is σ = 4270711323648. Its totient is φ = 360972288000.

The previous prime is 1331481919409. The next prime is 1331481919507. The reversal of 1331481919488 is 8849191841331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 521943813 + ... + 521946363.

Almost surely, 2^{1331481919488} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1331481919488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2135355661824).

1331481919488 is an abundant number, since it is smaller than the sum of its proper divisors (2939229404160).

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

1331481919488 is an equidigital number, since it uses as much as digits as its factorization.

1331481919488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2667 (or 2641 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 60.

The spelling of 1331481919488 in words is "one trillion, three hundred thirty-one billion, four hundred eighty-one million, nine hundred nineteen thousand, four hundred eighty-eight".