9857643201 has 24 divisors (see below), whose sum is σ = 16515821504. Its totient is φ = 5548862880.

The previous prime is 9857643197. The next prime is 9857643269. The reversal of 9857643201 is 1023467589.

9857643201 is digitally balanced in base 2 and base 10, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9857643201 - 2² = 9857643197 is a prime.

9857643201 is strictly pandigital in base 10.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9857643401) 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 23 ways as a sum of consecutive naturals, for example, 1163470 + ... + 1171911.

It is a 1-persistent number, because it is pandigital, but 2⋅9857643201 = 19715286402 is not.

Almost surely, 2^9857643201 is an apocalyptic number.

It is an amenable number.

9857643201 is a deficient number, since it is larger than the sum of its proper divisors (6658178303).

9857643201 is a wasteful number, since it uses less digits than its factorization.

9857643201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2335461 (or 2335458 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 9857643201 is about 99285.6646298951. The cubic root of 9857643201 is about 2144.1625100310.

The spelling of 9857643201 in words is "nine billion, eight hundred fifty-seven million, six hundred forty-three thousand, two hundred one".