6420839041 has 8 divisors (see below), whose sum is σ = 6446695968. Its totient is φ = 6395004000.

The previous prime is 6420838981. The next prime is 6420839053. The reversal of 6420839041 is 1409380246.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6420839041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6420839741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 831006 + ... + 838696.

It is an arithmetic number, because the mean of its divisors is an integer number (805836996).

Almost surely, 2^6420839041 is an apocalyptic number.

It is an amenable number.

6420839041 is a deficient number, since it is larger than the sum of its proper divisors (25856927).

6420839041 is a wasteful number, since it uses less digits than its factorization.

6420839041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10943.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 6420839041 is about 80130.1381566262. The cubic root of 6420839041 is about 1858.6484806543.

The spelling of 6420839041 in words is "six billion, four hundred twenty million, eight hundred thirty-nine thousand, forty-one".