240263020685 has 4 divisors (see below), whose sum is σ = 288315624828. Its totient is φ = 192210416544.

The previous prime is 240263020649. The next prime is 240263020691. The reversal of 240263020685 is 586020362042.

240263020685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 125941943689 + 114321076996 = 354883^2 + 338114^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240263020685 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 24026302064 + ... + 24026302073.

It is an arithmetic number, because the mean of its divisors is an integer number (72078906207).

Almost surely, 2^240263020685 is an apocalyptic number.

It is an amenable number.

240263020685 is a deficient number, since it is larger than the sum of its proper divisors (48052604143).

240263020685 is an equidigital number, since it uses as much as digits as its factorization.

240263020685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48052604142.

The product of its (nonzero) digits is 138240, while the sum is 38.

The spelling of 240263020685 in words is "two hundred forty billion, two hundred sixty-three million, twenty thousand, six hundred eighty-five".