641798696043 has 6 divisors (see below), whose sum is σ = 927042560964. Its totient is φ = 427865797356.

The previous prime is 641798696029. The next prime is 641798696047. The reversal of 641798696043 is 340696897146.

641798696043 is a `hidden beast` number, since 6 + 4 + 17 + 9 + 8 + 6 + 9 + 604 + 3 = 666.

It is not a de Polignac number, because 641798696043 - 2¹⁰ = 641798695019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (641798696047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35655483105 + ... + 35655483122.

It is an arithmetic number, because the mean of its divisors is an integer number (154507093494).

Almost surely, 2^641798696043 is an apocalyptic number.

641798696043 is a deficient number, since it is larger than the sum of its proper divisors (285243864921).

641798696043 is a wasteful number, since it uses less digits than its factorization.

641798696043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71310966233 (or 71310966230 counting only the distinct ones).

The product of its (nonzero) digits is 47029248, while the sum is 63.

The spelling of 641798696043 in words is "six hundred forty-one billion, seven hundred ninety-eight million, six hundred ninety-six thousand, forty-three".