245343244345309 has 16 divisors (see below), whose sum is σ = 267723462396096. Its totient is φ = 222975744409600.

The previous prime is 245343244345253. The next prime is 245343244345351. The reversal of 245343244345309 is 903543442343542.

It is a cyclic number.

It is not a de Polignac number, because 245343244345309 - 2⁹ = 245343244344797 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 245343244345309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245343244345379) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1778334759 + ... + 1778472715.

It is an arithmetic number, because the mean of its divisors is an integer number (16732716399756).

Almost surely, 2^{245343244345309} is an apocalyptic number.

It is an amenable number.

245343244345309 is a deficient number, since it is larger than the sum of its proper divisors (22380218050787).

245343244345309 is a wasteful number, since it uses less digits than its factorization.

245343244345309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182876.

The product of its (nonzero) digits is 74649600, while the sum is 55.

The spelling of 245343244345309 in words is "two hundred forty-five trillion, three hundred forty-three billion, two hundred forty-four million, three hundred forty-five thousand, three hundred nine".