1963791331359 has 16 divisors (see below), whose sum is σ = 3076148659584. Its totient is φ = 1098624520800.

The previous prime is 1963791331351. The next prime is 1963791331361. The reversal of 1963791331359 is 9531331973691.

It is a happy number.

It is not a de Polignac number, because 1963791331359 - 2³ = 1963791331351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1963791331351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2288800657 + ... + 2288801514.

It is an arithmetic number, because the mean of its divisors is an integer number (192259291224).

Almost surely, 2^{1963791331359} is an apocalyptic number.

1963791331359 is a deficient number, since it is larger than the sum of its proper divisors (1112357328225).

1963791331359 is a wasteful number, since it uses less digits than its factorization.

1963791331359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4577602198.

The product of its digits is 12400290, while the sum is 60.

The spelling of 1963791331359 in words is "one trillion, nine hundred sixty-three billion, seven hundred ninety-one million, three hundred thirty-one thousand, three hundred fifty-nine".