641859119 has 8 divisors (see below), whose sum is σ = 715108608. Its totient is φ = 571092760.

The previous prime is 641859109. The next prime is 641859131. The reversal of 641859119 is 911958146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 641859119 - 2¹⁶ = 641793583 is a prime.

It is a super-2 number, since 2×641859119² = 823966257286912322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 641859119.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641859109) 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 7 ways as a sum of consecutive naturals, for example, 620237 + ... + 621270.

It is an arithmetic number, because the mean of its divisors is an integer number (89388576).

Almost surely, 2^641859119 is an apocalyptic number.

641859119 is a deficient number, since it is larger than the sum of its proper divisors (73249489).

641859119 is a wasteful number, since it uses less digits than its factorization.

641859119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241565.

The product of its digits is 77760, while the sum is 44.

The square root of 641859119 is about 25334.9387013271. The cubic root of 641859119 is about 862.6075173394.

The spelling of 641859119 in words is "six hundred forty-one million, eight hundred fifty-nine thousand, one hundred nineteen".