9919780303 has 4 divisors (see below), whose sum is σ = 10239773248. Its totient is φ = 9599787360.

The previous prime is 9919780291. The next prime is 9919780307. The reversal of 9919780303 is 3030879199.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 9919780303 - 2⁹ = 9919779791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9919780307) 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, 159996426 + ... + 159996487.

It is an arithmetic number, because the mean of its divisors is an integer number (2559943312).

Almost surely, 2^9919780303 is an apocalyptic number.

9919780303 is a deficient number, since it is larger than the sum of its proper divisors (319992945).

9919780303 is a wasteful number, since it uses less digits than its factorization.

9919780303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319992944.

The product of its (nonzero) digits is 367416, while the sum is 49.

The square root of 9919780303 is about 99598.0938723227. The cubic root of 9919780303 is about 2148.6582797216.

The spelling of 9919780303 in words is "nine billion, nine hundred nineteen million, seven hundred eighty thousand, three hundred three".