5991860999 has 2 divisors, whose sum is σ = 5991861000. Its totient is φ = 5991860998.

The previous prime is 5991860989. The next prime is 5991861019. The reversal of 5991860999 is 9990681995.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5991860999 - 2⁴ = 5991860983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5991860989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2995930499 + 2995930500.

It is an arithmetic number, because the mean of its divisors is an integer number (2995930500).

Almost surely, 2^5991860999 is an apocalyptic number.

5991860999 is a deficient number, since it is larger than the sum of its proper divisors (1).

5991860999 is an equidigital number, since it uses as much as digits as its factorization.

5991860999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14171760, while the sum is 65.

The square root of 5991860999 is about 77407.1120698867. The cubic root of 5991860999 is about 1816.2985795706.

The spelling of 5991860999 in words is "five billion, nine hundred ninety-one million, eight hundred sixty thousand, nine hundred ninety-nine".