6848478578 has 18 divisors (see below), whose sum is σ = 10364998959. Its totient is φ = 3393751932.

The previous prime is 6848478569. The next prime is 6848478587. The reversal of 6848478578 is 8758748486.

It is an interprime number because it is at equal distance from previous prime (6848478569) and next prime (6848478587).

It can be written as a sum of positive squares in only one way, i.e., 3424239289 + 3424239289 = 58517^2 + 58517^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=58517.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 19076363 + ... + 19076721.

Almost surely, 2^6848478578 is an apocalyptic number.

6848478578 is a deficient number, since it is larger than the sum of its proper divisors (3516520381).

6848478578 is an frugal number, since it uses more digits than its factorization.

6848478578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046 (or 524 counting only the distinct ones).

The product of its digits is 96337920, while the sum is 65.

The square root of 6848478578 is about 82755.5350293864. The cubic root of 6848478578 is about 1899.0279957158.

The spelling of 6848478578 in words is "six billion, eight hundred forty-eight million, four hundred seventy-eight thousand, five hundred seventy-eight".