4245534354321 has 32 divisors (see below), whose sum is σ = 6774335648640. Its totient is φ = 2612315016000.

The previous prime is 4245534354263. The next prime is 4245534354329. The reversal of 4245534354321 is 1234534355424.

4245534354321 is a `hidden beast` number, since 4 + 2 + 4 + 55 + 34 + 3 + 543 + 21 = 666.

It is not a de Polignac number, because 4245534354321 - 2³⁵ = 4211174615953 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4245534354329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2127871 + ... + 3608171.

It is an arithmetic number, because the mean of its divisors is an integer number (211697989020).

Almost surely, 2^{4245534354321} is an apocalyptic number.

It is an amenable number.

4245534354321 is a deficient number, since it is larger than the sum of its proper divisors (2528801294319).

4245534354321 is a wasteful number, since it uses less digits than its factorization.

4245534354321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488494 (or 1488488 counting only the distinct ones).

The product of its digits is 3456000, while the sum is 45.

The spelling of 4245534354321 in words is "four trillion, two hundred forty-five billion, five hundred thirty-four million, three hundred fifty-four thousand, three hundred twenty-one".