5991112905626 has 16 divisors (see below), whose sum is σ = 9448957047240. Its totient is φ = 2844847279680.

The previous prime is 5991112905521. The next prime is 5991112905637. The reversal of 5991112905626 is 6265092111995.

It is a happy number.

It is a Cunningham number, because it is equal to 2447675²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 4193488935601 + 1797623970025 = 2047801^2 + 1340755^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 846677201 + ... + 846684276.

Almost surely, 2^{5991112905626} is an apocalyptic number.

5991112905626 is a deficient number, since it is larger than the sum of its proper divisors (3457844141614).

5991112905626 is a wasteful number, since it uses less digits than its factorization.

5991112905626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1693361569.

The product of its (nonzero) digits is 2624400, while the sum is 56.

The spelling of 5991112905626 in words is "five trillion, nine hundred ninety-one billion, one hundred twelve million, nine hundred five thousand, six hundred twenty-six".