9908939790719 has 4 divisors (see below), whose sum is σ = 9908946210240. Its totient is φ = 9908933371200.

The previous prime is 9908939790677. The next prime is 9908939790733. The reversal of 9908939790719 is 9170979398099.

9908939790719 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9908939790719 is a prime.

It is a super-2 number, since 2×9908939790719² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9908939790779) 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, 663794 + ... + 4500944.

It is an arithmetic number, because the mean of its divisors is an integer number (2477236552560).

Almost surely, 2^{9908939790719} is an apocalyptic number.

9908939790719 is a deficient number, since it is larger than the sum of its proper divisors (6419521).

9908939790719 is a wasteful number, since it uses less digits than its factorization.

9908939790719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6419520.

The product of its (nonzero) digits is 624974616, while the sum is 80.

The spelling of 9908939790719 in words is "nine trillion, nine hundred eight billion, nine hundred thirty-nine million, seven hundred ninety thousand, seven hundred nineteen".