240645081313 has 24 divisors (see below), whose sum is σ = 301113968064. Its totient is φ = 187278920640.

The previous prime is 240645081253. The next prime is 240645081317. The reversal of 240645081313 is 313180546042.

It is not a de Polignac number, because 240645081313 - 2⁹ = 240645080801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (240645081317) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16731 + ... + 693952.

It is an arithmetic number, because the mean of its divisors is an integer number (12546415336).

Almost surely, 2^240645081313 is an apocalyptic number.

It is an amenable number.

240645081313 is a deficient number, since it is larger than the sum of its proper divisors (60468886751).

240645081313 is an equidigital number, since it uses as much as digits as its factorization.

240645081313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710825 (or 710764 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 240645081313 in words is "two hundred forty billion, six hundred forty-five million, eighty-one thousand, three hundred thirteen".