6641797623 has 8 divisors (see below), whose sum is σ = 8856327168. Its totient is φ = 4427566584.

The previous prime is 6641797597. The next prime is 6641797633. The reversal of 6641797623 is 3267971466.

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

It is not a de Polignac number, because 6641797623 - 2²² = 6637603319 is a prime.

It is a super-3 number, since 3×6641797623³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6641797633) 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, 16165 + ... + 116382.

It is an arithmetic number, because the mean of its divisors is an integer number (1107040896).

Almost surely, 2^6641797623 is an apocalyptic number.

6641797623 is a deficient number, since it is larger than the sum of its proper divisors (2214529545).

6641797623 is a wasteful number, since it uses less digits than its factorization.

6641797623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149253.

The product of its digits is 2286144, while the sum is 51.

The square root of 6641797623 is about 81497.2246337260. The cubic root of 6641797623 is about 1879.7288750972.

The spelling of 6641797623 in words is "six billion, six hundred forty-one million, seven hundred ninety-seven thousand, six hundred twenty-three".