4457420247544 has 192 divisors, whose sum is σ = 10212224843520. Its totient is φ = 1812792960000.

The previous prime is 4457420247523. The next prime is 4457420247563.

4457420247544 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 4457420247491 and 4457420247500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 61657419 + ... + 61729669.

It is an arithmetic number, because the mean of its divisors is an integer number (53188671060).

Almost surely, 2^{4457420247544} is an apocalyptic number.

4457420247544 is a gapful number since it is divisible by the number (44) 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 4457420247544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5106112421760).

4457420247544 is an abundant number, since it is smaller than the sum of its proper divisors (5754804595976).

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

4457420247544 is a wasteful number, since it uses less digits than its factorization.

4457420247544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72482 (or 72467 counting only the distinct ones).

The product of its (nonzero) digits is 20070400, while the sum is 52.

The spelling of 4457420247544 in words is "four trillion, four hundred fifty-seven billion, four hundred twenty million, two hundred forty-seven thousand, five hundred forty-four".