6641425973 has 32 divisors (see below), whose sum is σ = 8617652736. Its totient is φ = 4974317568.

The previous prime is 6641425969. The next prime is 6641425979. The reversal of 6641425973 is 3795241466.

It is a cyclic number.

It is not a de Polignac number, because 6641425973 - 2² = 6641425969 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6641425979) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 186665 + ... + 219377.

It is an arithmetic number, because the mean of its divisors is an integer number (269301648).

Almost surely, 2^6641425973 is an apocalyptic number.

It is an amenable number.

6641425973 is a deficient number, since it is larger than the sum of its proper divisors (1976226763).

6641425973 is a wasteful number, since it uses less digits than its factorization.

6641425973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32853.

The product of its digits is 1088640, while the sum is 47.

The square root of 6641425973 is about 81494.9444628316. The cubic root of 6641425973 is about 1879.6938135919.

The spelling of 6641425973 in words is "six billion, six hundred forty-one million, four hundred twenty-five thousand, nine hundred seventy-three".