11395523643 has 64 divisors (see below), whose sum is σ = 18270259200. Its totient is φ = 6312297600.

The previous prime is 11395523617. The next prime is 11395523683. The reversal of 11395523643 is 34632559311.

It is not a de Polignac number, because 11395523643 - 2⁸ = 11395523387 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11395523595 and 11395523604.

It is not an unprimeable number, because it can be changed into a prime (11395523683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4455321 + ... + 4457877.

It is an arithmetic number, because the mean of its divisors is an integer number (285472800).

Almost surely, 2^11395523643 is an apocalyptic number.

11395523643 is a deficient number, since it is larger than the sum of its proper divisors (6874735557).

11395523643 is an equidigital number, since it uses as much as digits as its factorization.

11395523643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2713 (or 2699 counting only the distinct ones).

The product of its digits is 291600, while the sum is 42.

The spelling of 11395523643 in words is "eleven billion, three hundred ninety-five million, five hundred twenty-three thousand, six hundred forty-three".