1963240449984 has 672 divisors, whose sum is σ = 6888451714560. Its totient is φ = 526860288000.

The previous prime is 1963240449983. The next prime is 1963240449991. The reversal of 1963240449984 is 4899440423691.

1963240449984 is a `hidden beast` number, since 1 + 9 + 63 + 2 + 4 + 0 + 4 + 499 + 84 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1963240449983) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 309022552 + ... + 309028904.

Almost surely, 2^{1963240449984} 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 1963240449984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3444225857280).

1963240449984 is an abundant number, since it is smaller than the sum of its proper divisors (4925211264576).

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

1963240449984 is a wasteful number, since it uses less digits than its factorization.

1963240449984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6569 (or 6556 counting only the distinct ones).

The product of its (nonzero) digits is 53747712, while the sum is 63.

The spelling of 1963240449984 in words is "one trillion, nine hundred sixty-three billion, two hundred forty million, four hundred forty-nine thousand, nine hundred eighty-four".