245442457563 has 4 divisors (see below), whose sum is σ = 327256610088. Its totient is φ = 163628305040.

The previous prime is 245442457541. The next prime is 245442457597. The reversal of 245442457563 is 365754244542.

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 245442457563 - 2¹⁷ = 245442326491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245442453563) 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, 40907076258 + ... + 40907076263.

It is an arithmetic number, because the mean of its divisors is an integer number (81814152522).

Almost surely, 2^245442457563 is an apocalyptic number.

245442457563 is a deficient number, since it is larger than the sum of its proper divisors (81814152525).

245442457563 is an equidigital number, since it uses as much as digits as its factorization.

245442457563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81814152524.

The product of its digits is 16128000, while the sum is 51.

The spelling of 245442457563 in words is "two hundred forty-five billion, four hundred forty-two million, four hundred fifty-seven thousand, five hundred sixty-three".