245305345305421 has 8 divisors (see below), whose sum is σ = 247102072176960. Its totient is φ = 243508707954528.

The previous prime is 245305345305413. The next prime is 245305345305451. The reversal of 245305345305421 is 124503543503542.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 245305345305421 - 2³ = 245305345305413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245305345305451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16874731 + ... + 27845416.

It is an arithmetic number, because the mean of its divisors is an integer number (30887759022120).

Almost surely, 2^{245305345305421} is an apocalyptic number.

It is an amenable number.

245305345305421 is a deficient number, since it is larger than the sum of its proper divisors (1796726871539).

245305345305421 is a wasteful number, since it uses less digits than its factorization.

245305345305421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44760323.

The product of its (nonzero) digits is 4320000, while the sum is 46.

Adding to 245305345305421 its reverse (124503543503542), we get a palindrome (369808888808963).

The spelling of 245305345305421 in words is "two hundred forty-five trillion, three hundred five billion, three hundred forty-five million, three hundred five thousand, four hundred twenty-one".