245043306723 has 4 divisors (see below), whose sum is σ = 326724408968. Its totient is φ = 163362204480.

The previous prime is 245043306721. The next prime is 245043306733. The reversal of 245043306723 is 327603340542.

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

It is not a de Polignac number, because 245043306723 - 2¹ = 245043306721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245043306721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40840551118 + ... + 40840551123.

It is an arithmetic number, because the mean of its divisors is an integer number (81681102242).

Almost surely, 2^245043306723 is an apocalyptic number.

245043306723 is a deficient number, since it is larger than the sum of its proper divisors (81681102245).

245043306723 is an equidigital number, since it uses as much as digits as its factorization.

245043306723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81681102244.

The product of its (nonzero) digits is 362880, while the sum is 39.

The spelling of 245043306723 in words is "two hundred forty-five billion, forty-three million, three hundred six thousand, seven hundred twenty-three".