5686378985 has 16 divisors (see below), whose sum is σ = 7823392896. Its totient is φ = 3886766208.

The previous prime is 5686378961. The next prime is 5686378991. The reversal of 5686378985 is 5898736865.

It is a cyclic number.

It is not a de Polignac number, because 5686378985 - 2¹⁸ = 5686116841 is a prime.

It is a super-2 number, since 2×5686378985² = 64669811922099260450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248579 + ... + 270488.

It is an arithmetic number, because the mean of its divisors is an integer number (488962056).

Almost surely, 2^5686378985 is an apocalyptic number.

It is an amenable number.

5686378985 is a deficient number, since it is larger than the sum of its proper divisors (2137013911).

5686378985 is a wasteful number, since it uses less digits than its factorization.

5686378985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519392.

The product of its digits is 87091200, while the sum is 65.

The square root of 5686378985 is about 75408.0830216496. The cubic root of 5686378985 is about 1784.8919617516.

The spelling of 5686378985 in words is "five billion, six hundred eighty-six million, three hundred seventy-eight thousand, nine hundred eighty-five".