5681078865 has 216 divisors, whose sum is σ = 12772468800. Its totient is φ = 2327149440.

The previous prime is 5681078861. The next prime is 5681078891. The reversal of 5681078865 is 5688701865.

5681078865 is a `hidden beast` number, since 568 + 1 + 0 + 78 + 8 + 6 + 5 = 666.

It is not a de Polignac number, because 5681078865 - 2² = 5681078861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5681078861) by changing a digit.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 28548036 + ... + 28548234.

It is an arithmetic number, because the mean of its divisors is an integer number (59131800).

Almost surely, 2^5681078865 is an apocalyptic number.

5681078865 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5681078865 is an abundant number, since it is smaller than the sum of its proper divisors (7091389935).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5681078865 is a wasteful number, since it uses less digits than its factorization.

5681078865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353 (or 332 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 54.

The square root of 5681078865 is about 75372.9319119271. The cubic root of 5681078865 is about 1784.3372395337.

The spelling of 5681078865 in words is "five billion, six hundred eighty-one million, seventy-eight thousand, eight hundred sixty-five".