641841848 has 8 divisors (see below), whose sum is σ = 1203453480. Its totient is φ = 320920920.

The previous prime is 641841773. The next prime is 641841853. The reversal of 641841848 is 848148146.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 641841799 and 641841808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40115108 + ... + 40115123.

It is an arithmetic number, because the mean of its divisors is an integer number (150431685).

Almost surely, 2^641841848 is an apocalyptic number.

It is an amenable number.

641841848 is a deficient number, since it is larger than the sum of its proper divisors (561611632).

641841848 is a wasteful number, since it uses less digits than its factorization.

641841848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80230237 (or 80230233 counting only the distinct ones).

The product of its digits is 196608, while the sum is 44.

The square root of 641841848 is about 25334.5978456339. The cubic root of 641841848 is about 862.5997803207.

The spelling of 641841848 in words is "six hundred forty-one million, eight hundred forty-one thousand, eight hundred forty-eight".