9999193601 has 2 divisors, whose sum is σ = 9999193602. Its totient is φ = 9999193600.

The previous prime is 9999193579. The next prime is 9999193651. The reversal of 9999193601 is 1063919999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8977752001 + 1021441600 = 94751^2 + 31960^2 .

It is an emirp because it is prime and its reverse (1063919999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9999193601 - 2²² = 9994999297 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (9999193651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4999596800 + 4999596801.

It is an arithmetic number, because the mean of its divisors is an integer number (4999596801).

Almost surely, 2^9999193601 is an apocalyptic number.

It is an amenable number.

9999193601 is a deficient number, since it is larger than the sum of its proper divisors (1).

9999193601 is an equidigital number, since it uses as much as digits as its factorization.

9999193601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1062882, while the sum is 56.

The square root of 9999193601 is about 99995.9679237118. The cubic root of 9999193601 is about 2154.3767773425.

The spelling of 9999193601 in words is "nine billion, nine hundred ninety-nine million, one hundred ninety-three thousand, six hundred one".