643141141348 has 48 divisors (see below), whose sum is σ = 1217689127424. Its totient is φ = 296087866880.

The previous prime is 643141141343. The next prime is 643141141369. The reversal of 643141141348 is 843141141346.

It is a self number, because there is not a number n which added to its sum of digits gives 643141141348.

It is not an unprimeable number, because it can be changed into a prime (643141141343) 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 15 ways as a sum of consecutive naturals, for example, 993453 + ... + 1507723.

It is an arithmetic number, because the mean of its divisors is an integer number (25368523488).

Almost surely, 2^643141141348 is an apocalyptic number.

643141141348 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

643141141348 is a deficient number, since it is larger than the sum of its proper divisors (574547986076).

643141141348 is a wasteful number, since it uses less digits than its factorization.

643141141348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514692 (or 514690 counting only the distinct ones).

The product of its digits is 110592, while the sum is 40.

The spelling of 643141141348 in words is "six hundred forty-three billion, one hundred forty-one million, one hundred forty-one thousand, three hundred forty-eight".