6917378963 has 16 divisors (see below), whose sum is σ = 7962921600. Its totient is φ = 5942911680.

The previous prime is 6917378947. The next prime is 6917378981. The reversal of 6917378963 is 3698737196.

It is a cyclic number.

It is not a de Polignac number, because 6917378963 - 2⁴ = 6917378947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6917378933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45020 + ... + 125942.

It is an arithmetic number, because the mean of its divisors is an integer number (497682600).

Almost surely, 2^6917378963 is an apocalyptic number.

6917378963 is a deficient number, since it is larger than the sum of its proper divisors (1045542637).

6917378963 is a wasteful number, since it uses less digits than its factorization.

6917378963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81362.

The product of its digits is 10287648, while the sum is 59.

The square root of 6917378963 is about 83170.7819068692. The cubic root of 6917378963 is about 1905.3752645353.

The spelling of 6917378963 in words is "six billion, nine hundred seventeen million, three hundred seventy-eight thousand, nine hundred sixty-three".