9438645047 has 4 divisors (see below), whose sum is σ = 10164694680. Its totient is φ = 8712595416.

The previous prime is 9438645037. The next prime is 9438645053. The reversal of 9438645047 is 7405468349.

9438645047 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9438645047 - 2⁶ = 9438644983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9438644986 and 9438645004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9438645037) 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 3 ways as a sum of consecutive naturals, for example, 363024797 + ... + 363024822.

It is an arithmetic number, because the mean of its divisors is an integer number (2541173670).

Almost surely, 2^9438645047 is an apocalyptic number.

9438645047 is a deficient number, since it is larger than the sum of its proper divisors (726049633).

9438645047 is a wasteful number, since it uses less digits than its factorization.

9438645047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726049632.

The product of its (nonzero) digits is 2903040, while the sum is 50.

The square root of 9438645047 is about 97152.6893451746. The cubic root of 9438645047 is about 2113.3424892682.

The spelling of 9438645047 in words is "nine billion, four hundred thirty-eight million, six hundred forty-five thousand, forty-seven".