641854341 has 16 divisors (see below), whose sum is σ = 957198720. Its totient is φ = 425066400.

The previous prime is 641854321. The next prime is 641854379. The reversal of 641854341 is 143458146.

641854341 is a `hidden beast` number, since 64 + 18 + 543 + 41 = 666.

It is not a de Polignac number, because 641854341 - 2⁶ = 641854277 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 641854296 and 641854305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641854321) 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, 74640 + ... + 82793.

It is an arithmetic number, because the mean of its divisors is an integer number (59824920).

Almost surely, 2^641854341 is an apocalyptic number.

It is an amenable number.

641854341 is a deficient number, since it is larger than the sum of its proper divisors (315344379).

641854341 is a wasteful number, since it uses less digits than its factorization.

641854341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157593 (or 157587 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 641854341 is about 25334.8444044956. The cubic root of 641854341 is about 862.6053769170.

The spelling of 641854341 in words is "six hundred forty-one million, eight hundred fifty-four thousand, three hundred forty-one".