9428915855 has 8 divisors (see below), whose sum is σ = 11368324464. Its totient is φ = 7507382400.

The previous prime is 9428915809. The next prime is 9428915879. The reversal of 9428915855 is 5585198249.

It is a happy number.

9428915855 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9428915855 - 2⁸ = 9428915599 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9428915855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4467626 + ... + 4469735.

It is an arithmetic number, because the mean of its divisors is an integer number (1421040558).

Almost surely, 2^9428915855 is an apocalyptic number.

9428915855 is a deficient number, since it is larger than the sum of its proper divisors (1939408609).

9428915855 is a wasteful number, since it uses less digits than its factorization.

9428915855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8937577.

The product of its digits is 5184000, while the sum is 56.

The square root of 9428915855 is about 97102.6047796865. The cubic root of 9428915855 is about 2112.6161073399.

The spelling of 9428915855 in words is "nine billion, four hundred twenty-eight million, nine hundred fifteen thousand, eight hundred fifty-five".