6718657963 has 8 divisors (see below), whose sum is σ = 7123896720. Its totient is φ = 6318581760.

The previous prime is 6718657961. The next prime is 6718657973. The reversal of 6718657963 is 3697568176.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6718657963 - 2¹ = 6718657961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6718657898 and 6718657907.

It is not an unprimeable number, because it can be changed into a prime (6718657961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1287958 + ... + 1293163.

It is an arithmetic number, because the mean of its divisors is an integer number (890487090).

Almost surely, 2^6718657963 is an apocalyptic number.

6718657963 is a deficient number, since it is larger than the sum of its proper divisors (405238757).

6718657963 is a wasteful number, since it uses less digits than its factorization.

6718657963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2581277.

The product of its digits is 11430720, while the sum is 58.

The square root of 6718657963 is about 81967.4201314156. The cubic root of 6718657963 is about 1886.9519623370.

The spelling of 6718657963 in words is "six billion, seven hundred eighteen million, six hundred fifty-seven thousand, nine hundred sixty-three".