843696381087 has 12 divisors (see below), whose sum is σ = 1392768629200. Its totient is φ = 482112217728.

The previous prime is 843696381071. The next prime is 843696381089. The reversal of 843696381087 is 780183696348.

843696381087 is a `hidden beast` number, since 8 + 436 + 96 + 3 + 8 + 108 + 7 = 666.

It is not a de Polignac number, because 843696381087 - 2⁴ = 843696381071 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63), and also a Moran number because the ratio is a prime number: 13392006049 = 843696381087 / (8 + 4 + 3 + 6 + 9 + 6 + 3 + 8 + 1 + 0 + 8 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (843696381089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6696002962 + ... + 6696003087.

Almost surely, 2^843696381087 is an apocalyptic number.

843696381087 is a deficient number, since it is larger than the sum of its proper divisors (549072248113).

843696381087 is a wasteful number, since it uses less digits than its factorization.

843696381087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13392006062 (or 13392006059 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 63.

The spelling of 843696381087 in words is "eight hundred forty-three billion, six hundred ninety-six million, three hundred eighty-one thousand, eighty-seven".