9940196993 has 4 divisors (see below), whose sum is σ = 9975321648. Its totient is φ = 9905072340.

The previous prime is 9940196963. The next prime is 9940196999. The reversal of 9940196993 is 3996910499.

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 9940196993 - 2¹² = 9940192897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9940196999) 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, 17561903 + ... + 17562468.

It is an arithmetic number, because the mean of its divisors is an integer number (2493830412).

Almost surely, 2^9940196993 is an apocalyptic number.

It is an amenable number.

9940196993 is a deficient number, since it is larger than the sum of its proper divisors (35124655).

9940196993 is a wasteful number, since it uses less digits than its factorization.

9940196993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35124654.

The product of its (nonzero) digits is 4251528, while the sum is 59.

The square root of 9940196993 is about 99700.5365732803. The cubic root of 9940196993 is about 2150.1313778020.

The spelling of 9940196993 in words is "nine billion, nine hundred forty million, one hundred ninety-six thousand, nine hundred ninety-three".