99794993960209 has 4 divisors (see below), whose sum is σ = 99865123964416. Its totient is φ = 99724863956004.

The previous prime is 99794993960197. The next prime is 99794993960257. The reversal of 99794993960209 is 90206939949799.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 99794993960209 - 2²¹ = 99794991863057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99794993960009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35064999969 + ... + 35065002814.

It is an arithmetic number, because the mean of its divisors is an integer number (24966280991104).

Almost surely, 2^{99794993960209} is an apocalyptic number.

It is an amenable number.

99794993960209 is a deficient number, since it is larger than the sum of its proper divisors (70130004207).

99794993960209 is a wasteful number, since it uses less digits than its factorization.

99794993960209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70130004206.

The product of its (nonzero) digits is 4821232752, while the sum is 85.

The spelling of 99794993960209 in words is "ninety-nine trillion, seven hundred ninety-four billion, nine hundred ninety-three million, nine hundred sixty thousand, two hundred nine".