1963315494240 has 384 divisors, whose sum is σ = 6668176048128. Its totient is φ = 483809034240.

The previous prime is 1963315494211. The next prime is 1963315494293. The reversal of 1963315494240 is 424945133691.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 100513275 + ... + 100532805.

It is an arithmetic number, because the mean of its divisors is an integer number (17365041792).

Almost surely, 2^{1963315494240} is an apocalyptic number.

1963315494240 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 1963315494240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3334088024064).

1963315494240 is an abundant number, since it is smaller than the sum of its proper divisors (4704860553888).

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

1963315494240 is a wasteful number, since it uses less digits than its factorization.

1963315494240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19790 (or 19782 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 51.

The spelling of 1963315494240 in words is "one trillion, nine hundred sixty-three billion, three hundred fifteen million, four hundred ninety-four thousand, two hundred forty".