245343353442013 has 4 divisors (see below), whose sum is σ = 251327337672348. Its totient is φ = 239359369211680.

The previous prime is 245343353442007. The next prime is 245343353442017. The reversal of 245343353442013 is 310244353343542.

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 54950463728164 + 190392889713849 = 7412858^2 + 13798293^2 .

It is a cyclic number.

It is not a de Polignac number, because 245343353442013 - 2⁵ = 245343353441981 is a prime.

It is a super-2 number, since 2×245343353442013² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245343353442017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2991992115106 + ... + 2991992115187.

It is an arithmetic number, because the mean of its divisors is an integer number (62831834418087).

Almost surely, 2^{245343353442013} is an apocalyptic number.

It is an amenable number.

245343353442013 is a deficient number, since it is larger than the sum of its proper divisors (5983984230335).

245343353442013 is an equidigital number, since it uses as much as digits as its factorization.

245343353442013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5983984230334.

The product of its (nonzero) digits is 6220800, while the sum is 46.

The spelling of 245343353442013 in words is "two hundred forty-five trillion, three hundred forty-three billion, three hundred fifty-three million, four hundred forty-two thousand, thirteen".