2748581447220 has 192 divisors, whose sum is σ = 10036862492160. Its totient is φ = 611267503104.

The previous prime is 2748581447159. The next prime is 2748581447221. The reversal of 2748581447220 is 227441858472.

2748581447220 is a `hidden beast` number, since 2 + 74 + 8 + 5 + 81 + 4 + 472 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2748581447221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9686329 + ... + 9966048.

It is an arithmetic number, because the mean of its divisors is an integer number (52275325480).

Almost surely, 2^{2748581447220} is an apocalyptic number.

2748581447220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2748581447220 is an abundant number, since it is smaller than the sum of its proper divisors (7288281044940).

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

2748581447220 is a wasteful number, since it uses less digits than its factorization.

2748581447220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19652439 (or 19652431 counting only the distinct ones).

The product of its (nonzero) digits is 8028160, while the sum is 54.

The spelling of 2748581447220 in words is "two trillion, seven hundred forty-eight billion, five hundred eighty-one million, four hundred forty-seven thousand, two hundred twenty".