9429838655 has 32 divisors (see below), whose sum is σ = 12096000000. Its totient is φ = 7040702592.

The previous prime is 9429838637. The next prime is 9429838657. The reversal of 9429838655 is 5568389249.

9429838655 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9429838655 - 2⁶ = 9429838591 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9429838594 and 9429838603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9429838657) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1883846 + ... + 1888844.

It is an arithmetic number, because the mean of its divisors is an integer number (378000000).

Almost surely, 2^9429838655 is an apocalyptic number.

9429838655 is a deficient number, since it is larger than the sum of its proper divisors (2666161345).

9429838655 is a wasteful number, since it uses less digits than its factorization.

9429838655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5423.

The product of its digits is 18662400, while the sum is 59.

The square root of 9429838655 is about 97107.3563382301. The cubic root of 9429838655 is about 2112.6850250740.

The spelling of 9429838655 in words is "nine billion, four hundred twenty-nine million, eight hundred thirty-eight thousand, six hundred fifty-five".