9142447699 has 24 divisors (see below), whose sum is σ = 11646561024. Its totient is φ = 7023601200.

The previous prime is 9142447669. The next prime is 9142447711. The reversal of 9142447699 is 9967442419.

9142447699 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9142447699 - 2⁵ = 9142447667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9142447609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15877 + ... + 136150.

It is an arithmetic number, because the mean of its divisors is an integer number (485273376).

Almost surely, 2^9142447699 is an apocalyptic number.

9142447699 is a deficient number, since it is larger than the sum of its proper divisors (2504113325).

9142447699 is a wasteful number, since it uses less digits than its factorization.

9142447699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152127 (or 152116 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 55.

The square root of 9142447699 is about 95616.1476896031. The cubic root of 9142447699 is about 2091.0006196611. Note that the first 3 decimals are identical.

The spelling of 9142447699 in words is "nine billion, one hundred forty-two million, four hundred forty-seven thousand, six hundred ninety-nine".