6421173746 has 32 divisors (see below), whose sum is σ = 10839806208. Its totient is φ = 2833084800.

The previous prime is 6421173653. The next prime is 6421173767. The reversal of 6421173746 is 6473711246.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8555 + ... + 113646.

It is an arithmetic number, because the mean of its divisors is an integer number (338743944).

Almost surely, 2^6421173746 is an apocalyptic number.

6421173746 is a deficient number, since it is larger than the sum of its proper divisors (4418632462).

6421173746 is a wasteful number, since it uses less digits than its factorization.

6421173746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122306.

The product of its digits is 169344, while the sum is 41.

The square root of 6421173746 is about 80132.2266382259. The cubic root of 6421173746 is about 1858.6807759212.

The spelling of 6421173746 in words is "six billion, four hundred twenty-one million, one hundred seventy-three thousand, seven hundred forty-six".