641141735671 has 4 divisors (see below), whose sum is σ = 641247838312. Its totient is φ = 641035633032.

The previous prime is 641141735657. The next prime is 641141735683. The reversal of 641141735671 is 176537141146.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 641141735671 - 2⁵ = 641141735639 is a prime.

It is a super-2 number, since 2×641141735671² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641141739671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53042256 + ... + 53054341.

It is an arithmetic number, because the mean of its divisors is an integer number (160311959578).

Almost surely, 2^641141735671 is an apocalyptic number.

641141735671 is a deficient number, since it is larger than the sum of its proper divisors (106102641).

641141735671 is a wasteful number, since it uses less digits than its factorization.

641141735671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106102640.

The product of its digits is 423360, while the sum is 46.

The spelling of 641141735671 in words is "six hundred forty-one billion, one hundred forty-one million, seven hundred thirty-five thousand, six hundred seventy-one".