999990000027 has 96 divisors (see below), whose sum is σ = 1558153958400. Its totient is φ = 616126585536.

The previous prime is 999990000017. The next prime is 999990000067. The reversal of 999990000027 is 720000099999.

999990000027 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 999990000027 - 2¹² = 999989995931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (999990000017) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 580376388 + ... + 580378110.

It is an arithmetic number, because the mean of its divisors is an integer number (16230770400).

Almost surely, 2^999990000027 is an apocalyptic number.

999990000027 is a deficient number, since it is larger than the sum of its proper divisors (558163958373).

999990000027 is a wasteful number, since it uses less digits than its factorization.

999990000027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2277 (or 2274 counting only the distinct ones).

The product of its (nonzero) digits is 826686, while the sum is 54.

The spelling of 999990000027 in words is "nine hundred ninety-nine billion, nine hundred ninety million, twenty-seven", and thus it is an aban number.