5861866709 has 2 divisors, whose sum is σ = 5861866710. Its totient is φ = 5861866708.

The previous prime is 5861866693. The next prime is 5861866723. The reversal of 5861866709 is 9076681685.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5113680100 + 748186609 = 71510^2 + 27353^2 .

It is a cyclic number.

It is not a de Polignac number, because 5861866709 - 2⁴ = 5861866693 is a prime.

It is a super-2 number, since 2×5861866709² = 68722962628164981362, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5861866729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2930933354 + 2930933355.

It is an arithmetic number, because the mean of its divisors is an integer number (2930933355).

Almost surely, 2^5861866709 is an apocalyptic number.

It is an amenable number.

5861866709 is a deficient number, since it is larger than the sum of its proper divisors (1).

5861866709 is an equidigital number, since it uses as much as digits as its factorization.

5861866709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4354560, while the sum is 56.

The square root of 5861866709 is about 76562.8285070503. The cubic root of 5861866709 is about 1803.0674762674.

The spelling of 5861866709 in words is "five billion, eight hundred sixty-one million, eight hundred sixty-six thousand, seven hundred nine".