245815847673 has 32 divisors (see below), whose sum is σ = 373829575680. Its totient is φ = 142221752640.

The previous prime is 245815847659. The next prime is 245815847701. The reversal of 245815847673 is 376748518542.

It is not a de Polignac number, because 245815847673 - 2⁹ = 245815847161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245815847603) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68190 + ... + 704472.

It is an arithmetic number, because the mean of its divisors is an integer number (11682174240).

Almost surely, 2^245815847673 is an apocalyptic number.

245815847673 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

245815847673 is a deficient number, since it is larger than the sum of its proper divisors (128013728007).

245815847673 is a wasteful number, since it uses less digits than its factorization.

245815847673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636829.

The product of its digits is 45158400, while the sum is 60.

The spelling of 245815847673 in words is "two hundred forty-five billion, eight hundred fifteen million, eight hundred forty-seven thousand, six hundred seventy-three".