9435641690 has 16 divisors (see below), whose sum is σ = 17188784928. Its totient is φ = 3728783376.

The previous prime is 9435641687. The next prime is 9435641713. The reversal of 9435641690 is 961465349.

It is a happy number.

9435641690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9435641690² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5683292 + ... + 5684951.

It is an arithmetic number, because the mean of its divisors is an integer number (1074299058).

Almost surely, 2^9435641690 is an apocalyptic number.

9435641690 is a deficient number, since it is larger than the sum of its proper divisors (7753143238).

9435641690 is a wasteful number, since it uses less digits than its factorization.

9435641690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11368333.

The product of its (nonzero) digits is 699840, while the sum is 47.

The square root of 9435641690 is about 97137.2312246957. The cubic root of 9435641690 is about 2113.1183117773.

The spelling of 9435641690 in words is "nine billion, four hundred thirty-five million, six hundred forty-one thousand, six hundred ninety".