5866615861 has 8 divisors (see below), whose sum is σ = 6012590144. Its totient is φ = 5721075360.

The previous prime is 5866615849. The next prime is 5866615879. The reversal of 5866615861 is 1685166685.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5866615861 - 2⁵ = 5866615829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5866615799 and 5866615808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5866615841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80976 + ... + 135241.

It is an arithmetic number, because the mean of its divisors is an integer number (751573768).

Almost surely, 2^5866615861 is an apocalyptic number.

It is an amenable number.

5866615861 is a deficient number, since it is larger than the sum of its proper divisors (145974283).

5866615861 is a wasteful number, since it uses less digits than its factorization.

5866615861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216891.

The product of its digits is 2073600, while the sum is 52.

The square root of 5866615861 is about 76593.8369648629. The cubic root of 5866615861 is about 1803.5542796726.

The spelling of 5866615861 in words is "five billion, eight hundred sixty-six million, six hundred fifteen thousand, eight hundred sixty-one".