643141141347 has 16 divisors (see below), whose sum is σ = 877545187200. Its totient is φ = 418750776192.

The previous prime is 643141141343. The next prime is 643141141369. The reversal of 643141141347 is 743141141346.

643141141347 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 643141141347 - 2² = 643141141343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (643141141343) 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, 1200904 + ... + 1651802.

It is an arithmetic number, because the mean of its divisors is an integer number (54846574200).

Almost surely, 2^643141141347 is an apocalyptic number.

643141141347 is a deficient number, since it is larger than the sum of its proper divisors (234404045853).

643141141347 is a wasteful number, since it uses less digits than its factorization.

643141141347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462002.

The product of its digits is 96768, while the sum is 39.

Subtracting 643141141347 from its reverse (743141141346), we obtain a palindrome (99999999999).

The spelling of 643141141347 in words is "six hundred forty-three billion, one hundred forty-one million, one hundred forty-one thousand, three hundred forty-seven".