641536383 has 16 divisors (see below), whose sum is σ = 862414560. Its totient is φ = 424185216.

The previous prime is 641536373. The next prime is 641536391. The reversal of 641536383 is 383635146.

It is not a de Polignac number, because 641536383 - 2⁴ = 641536367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641536373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 374533 + ... + 376241.

It is an arithmetic number, because the mean of its divisors is an integer number (53900910).

Almost surely, 2^641536383 is an apocalyptic number.

641536383 is a deficient number, since it is larger than the sum of its proper divisors (220878177).

641536383 is a wasteful number, since it uses less digits than its factorization.

641536383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2666.

The product of its digits is 155520, while the sum is 39.

The square root of 641536383 is about 25328.5685146240. The cubic root of 641536383 is about 862.4629159439.

The spelling of 641536383 in words is "six hundred forty-one million, five hundred thirty-six thousand, three hundred eighty-three".