240517899313 has 4 divisors (see below), whose sum is σ = 241846727668. Its totient is φ = 239189070960.

The previous prime is 240517899301. The next prime is 240517899319. The reversal of 240517899313 is 313998715042.

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 34572567969 + 205945331344 = 185937^2 + 453812^2 .

It is a cyclic number.

It is not a de Polignac number, because 240517899313 - 2²¹ = 240515802161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240517899319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 664413906 + ... + 664414267.

It is an arithmetic number, because the mean of its divisors is an integer number (60461681917).

Almost surely, 2^240517899313 is an apocalyptic number.

It is an amenable number.

240517899313 is a deficient number, since it is larger than the sum of its proper divisors (1328828355).

240517899313 is a wasteful number, since it uses less digits than its factorization.

240517899313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328828354.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The spelling of 240517899313 in words is "two hundred forty billion, five hundred seventeen million, eight hundred ninety-nine thousand, three hundred thirteen".