6896878463 has 4 divisors (see below), whose sum is σ = 7196742768. Its totient is φ = 6597014160.

The previous prime is 6896878459. The next prime is 6896878511. The reversal of 6896878463 is 3648786986.

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 6896878463 - 2² = 6896878459 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6896878463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6896878453) 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, 149932118 + ... + 149932163.

It is an arithmetic number, because the mean of its divisors is an integer number (1799185692).

Almost surely, 2^6896878463 is an apocalyptic number.

6896878463 is a deficient number, since it is larger than the sum of its proper divisors (299864305).

6896878463 is a wasteful number, since it uses less digits than its factorization.

6896878463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299864304.

The product of its digits is 83607552, while the sum is 65.

The square root of 6896878463 is about 83047.4470588952. The cubic root of 6896878463 is about 1903.4911310133.

The spelling of 6896878463 in words is "six billion, eight hundred ninety-six million, eight hundred seventy-eight thousand, four hundred sixty-three".