9855434507 has 8 divisors (see below), whose sum is σ = 9928647360. Its totient is φ = 9782493120.

The previous prime is 9855434503. The next prime is 9855434509. The reversal of 9855434507 is 7054345589.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 9855434507 - 2² = 9855434503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9855434503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5303 + ... + 140495.

It is an arithmetic number, because the mean of its divisors is an integer number (1241080920).

Almost surely, 2^9855434507 is an apocalyptic number.

9855434507 is a deficient number, since it is larger than the sum of its proper divisors (73212853).

9855434507 is a wasteful number, since it uses less digits than its factorization.

9855434507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135733.

The product of its (nonzero) digits is 3024000, while the sum is 50.

The square root of 9855434507 is about 99274.5410817899. The cubic root of 9855434507 is about 2144.0023584100.

The spelling of 9855434507 in words is "nine billion, eight hundred fifty-five million, four hundred thirty-four thousand, five hundred seven".