6681483647 has 4 divisors (see below), whose sum is σ = 6971982960. Its totient is φ = 6390984336.

The previous prime is 6681483631. The next prime is 6681483691. The reversal of 6681483647 is 7463841866.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6681483647 - 2⁴ = 6681483631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6681483617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145249622 + ... + 145249667.

It is an arithmetic number, because the mean of its divisors is an integer number (1742995740).

Almost surely, 2^6681483647 is an apocalyptic number.

6681483647 is a deficient number, since it is larger than the sum of its proper divisors (290499313).

6681483647 is a wasteful number, since it uses less digits than its factorization.

6681483647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290499312.

The product of its digits is 4644864, while the sum is 53.

The square root of 6681483647 is about 81740.3428363253. The cubic root of 6681483647 is about 1883.4653572800.

The spelling of 6681483647 in words is "six billion, six hundred eighty-one million, four hundred eighty-three thousand, six hundred forty-seven".