9919840376 has 16 divisors (see below), whose sum is σ = 18604328400. Its totient is φ = 4958686144.

The previous prime is 9919840339. The next prime is 9919840417. The reversal of 9919840376 is 6730489199.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119636 + ... + 184803.

It is an arithmetic number, because the mean of its divisors is an integer number (1162770525).

Almost surely, 2^9919840376 is an apocalyptic number.

It is an amenable number.

9919840376 is a deficient number, since it is larger than the sum of its proper divisors (8684488024).

9919840376 is a wasteful number, since it uses less digits than its factorization.

9919840376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308518 (or 308514 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 56.

The square root of 9919840376 is about 99598.3954489228. The cubic root of 9919840376 is about 2148.6626170518.

The spelling of 9919840376 in words is "nine billion, nine hundred nineteen million, eight hundred forty thousand, three hundred seventy-six".