6641280039 has 8 divisors (see below), whose sum is σ = 9060971392. Its totient is φ = 4324554360.

The previous prime is 6641280031. The next prime is 6641280043. The reversal of 6641280039 is 9300821466.

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

It is not a de Polignac number, because 6641280039 - 2³ = 6641280031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6641279979 and 6641280006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6641280031) 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, 25741267 + ... + 25741524.

It is an arithmetic number, because the mean of its divisors is an integer number (1132621424).

Almost surely, 2^6641280039 is an apocalyptic number.

6641280039 is a deficient number, since it is larger than the sum of its proper divisors (2419691353).

6641280039 is a wasteful number, since it uses less digits than its factorization.

6641280039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51482837.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 6641280039 is about 81494.0491017596. The cubic root of 6641280039 is about 1879.6800458033.

The spelling of 6641280039 in words is "six billion, six hundred forty-one million, two hundred eighty thousand, thirty-nine".