4245051042520 has 128 divisors (see below), whose sum is σ = 10181307801600. Its totient is φ = 1588412851200.

The previous prime is 4245051042511. The next prime is 4245051042541. The reversal of 4245051042520 is 252401505424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20261500 + ... + 20469940.

It is an arithmetic number, because the mean of its divisors is an integer number (79541467200).

Almost surely, 2^{4245051042520} is an apocalyptic number.

4245051042520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4245051042520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5090653900800).

4245051042520 is an abundant number, since it is smaller than the sum of its proper divisors (5936256759080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4245051042520 is a wasteful number, since it uses less digits than its factorization.

4245051042520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208809 (or 208805 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 34.

Adding to 4245051042520 its reverse (252401505424), we get a palindrome (4497452547944).

The spelling of 4245051042520 in words is "four trillion, two hundred forty-five billion, fifty-one million, forty-two thousand, five hundred twenty".