6878648061 has 10 divisors (see below), whose sum is σ = 10275511422. Its totient is φ = 4585765320.

The previous prime is 6878648039. The next prime is 6878648081. The reversal of 6878648061 is 1608468786.

6878648061 is a `hidden beast` number, since 6 + 87 + 86 + 480 + 6 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6647303961 + 231344100 = 81531^2 + 15210^2 .

It is not a de Polignac number, because 6878648061 - 2¹⁰ = 6878647037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6878647989 and 6878648007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6878648081) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 42460710 + ... + 42460871.

Almost surely, 2^6878648061 is an apocalyptic number.

It is an amenable number.

6878648061 is a deficient number, since it is larger than the sum of its proper divisors (3396863361).

6878648061 is an equidigital number, since it uses as much as digits as its factorization.

6878648061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84921593 (or 84921584 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 54.

The square root of 6878648061 is about 82937.6154769354. The cubic root of 6878648061 is about 1901.8124958210.

The spelling of 6878648061 in words is "six billion, eight hundred seventy-eight million, six hundred forty-eight thousand, sixty-one".