9999994000001 has 2 divisors, whose sum is σ = 9999994000002. Its totient is φ = 9999994000000.

The previous prime is 9999993999973. The next prime is 9999994000049. The reversal of 9999994000001 is 1000004999999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8999994000001 + 1000000000000 = 2999999^2 + 1000000^2 .

It is a cyclic number.

It is not a de Polignac number, because 9999994000001 - 2¹⁰ = 9999993998977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9999993999895 and 9999993999904.

It is not a weakly prime, because it can be changed into another prime (9999994000901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4999997000000 + 4999997000001.

It is an arithmetic number, because the mean of its divisors is an integer number (4999997000001).

Almost surely, 2^{9999994000001} is an apocalyptic number.

It is an amenable number.

9999994000001 is a deficient number, since it is larger than the sum of its proper divisors (1).

9999994000001 is an equidigital number, since it uses as much as digits as its factorization.

9999994000001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2125764, while the sum is 59.

The spelling of 9999994000001 in words is "nine trillion, nine hundred ninety-nine billion, nine hundred ninety-four million, one", and thus it is an aban number.