9919269408 has 48 divisors (see below), whose sum is σ = 26081558496. Its totient is φ = 3300902400.

The previous prime is 9919269407. The next prime is 9919269413. The reversal of 9919269408 is 8049629199.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (9919269407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28266 + ... + 143657.

It is an arithmetic number, because the mean of its divisors is an integer number (543365802).

Almost surely, 2^9919269408 is an apocalyptic number.

It is an amenable number.

9919269408 is an abundant number, since it is smaller than the sum of its proper divisors (16162289088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9919269408 is a wasteful number, since it uses less digits than its factorization.

9919269408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172537 (or 172529 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 57.

The square root of 9919269408 is about 99595.5290562784. The cubic root of 9919269408 is about 2148.6213918879.

The spelling of 9919269408 in words is "nine billion, nine hundred nineteen million, two hundred sixty-nine thousand, four hundred eight".