245402212334243 has 4 divisors (see below), whose sum is σ = 245419840551048. Its totient is φ = 245384584117440.

The previous prime is 245402212334239. The next prime is 245402212334281. The reversal of 245402212334243 is 342433212204542.

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

It is a cyclic number.

It is not a de Polignac number, because 245402212334243 - 2² = 245402212334239 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 245402212334243.

It is not an unprimeable number, because it can be changed into a prime (245402212334203) 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, 8814087521 + ... + 8814115362.

It is an arithmetic number, because the mean of its divisors is an integer number (61354960137762).

Almost surely, 2^{245402212334243} is an apocalyptic number.

245402212334243 is a deficient number, since it is larger than the sum of its proper divisors (17628216805).

245402212334243 is a wasteful number, since it uses less digits than its factorization.

245402212334243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17628216804.

The product of its (nonzero) digits is 1105920, while the sum is 41.

Adding to 245402212334243 its reverse (342433212204542), we get a palindrome (587835424538785).

The spelling of 245402212334243 in words is "two hundred forty-five trillion, four hundred two billion, two hundred twelve million, three hundred thirty-four thousand, two hundred forty-three".