9009919142 has 16 divisors (see below), whose sum is σ = 15450976800. Its totient is φ = 3860043648.

The previous prime is 9009919123. The next prime is 9009919147. The reversal of 9009919142 is 2419199009.

9009919142 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 9009919093 and 9009919102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9009919147) 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, 70517 + ... + 151632.

It is an arithmetic number, because the mean of its divisors is an integer number (965686050).

Almost surely, 2^9009919142 is an apocalyptic number.

9009919142 is a deficient number, since it is larger than the sum of its proper divisors (6441057658).

9009919142 is a wasteful number, since it uses less digits than its factorization.

9009919142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225055.

The product of its (nonzero) digits is 52488, while the sum is 44.

The square root of 9009919142 is about 94920.5938771982. The cubic root of 9009919142 is about 2080.8477145896.

The spelling of 9009919142 in words is "nine billion, nine million, nine hundred nineteen thousand, one hundred forty-two".