4427745678720 has 768 divisors, whose sum is σ = 19924895652480. Its totient is φ = 879250636800.

The previous prime is 4427745678683. The next prime is 4427745678779. The reversal of 4427745678720 is 278765477244.

4427745678720 is a `hidden beast` number, since 4 + 42 + 7 + 7 + 4 + 567 + 8 + 7 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8662270 + ... + 9159170.

Almost surely, 2^{4427745678720} is an apocalyptic number.

4427745678720 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 4427745678720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9962447826240).

4427745678720 is an abundant number, since it is smaller than the sum of its proper divisors (15497149973760).

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

4427745678720 is a wasteful number, since it uses less digits than its factorization.

4427745678720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496963 (or 496948 counting only the distinct ones).

The product of its (nonzero) digits is 147517440, while the sum is 63.

The spelling of 4427745678720 in words is "four trillion, four hundred twenty-seven billion, seven hundred forty-five million, six hundred seventy-eight thousand, seven hundred twenty".