2235648945509 has 4 divisors (see below), whose sum is σ = 2555027366304. Its totient is φ = 1916270524716.

The previous prime is 2235648945421. The next prime is 2235648945631. The reversal of 2235648945509 is 9055498465322.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2235648945509 - 2⁸ = 2235648945253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2235648945209) 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 3 ways as a sum of consecutive naturals, for example, 159689210387 + ... + 159689210400.

It is an arithmetic number, because the mean of its divisors is an integer number (638756841576).

Almost surely, 2^{2235648945509} is an apocalyptic number.

It is an amenable number.

2235648945509 is a deficient number, since it is larger than the sum of its proper divisors (319378420795).

2235648945509 is an equidigital number, since it uses as much as digits as its factorization.

2235648945509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319378420794.

The product of its (nonzero) digits is 93312000, while the sum is 62.

The spelling of 2235648945509 in words is "two trillion, two hundred thirty-five billion, six hundred forty-eight million, nine hundred forty-five thousand, five hundred nine".