1963358995968 has 120 divisors (see below), whose sum is σ = 5666961155856. Its totient is φ = 654386688000.

The previous prime is 1963358995967. The next prime is 1963358995987. The reversal of 1963358995968 is 8695998533691.

1963358995968 is a `hidden beast` number, since 1 + 96 + 3 + 358 + 9 + 95 + 96 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1963358995967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70354818 + ... + 70382718.

Almost surely, 2^{1963358995968} is an apocalyptic number.

1963358995968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1963358995968 is an abundant number, since it is smaller than the sum of its proper divisors (3703602159888).

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

1963358995968 is a wasteful number, since it uses less digits than its factorization.

1963358995968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43196 (or 43177 counting only the distinct ones).

The product of its digits is 3401222400, while the sum is 81.

The spelling of 1963358995968 in words is "one trillion, nine hundred sixty-three billion, three hundred fifty-eight million, nine hundred ninety-five thousand, nine hundred sixty-eight".