4081720937472 has 264 divisors, whose sum is σ = 12941372532816. Its totient is φ = 1280538574848.

The previous prime is 4081720937467. The next prime is 4081720937473. The reversal of 4081720937472 is 2747390271804.

4081720937472 is a `hidden beast` number, since 4 + 0 + 81 + 7 + 2 + 0 + 93 + 7 + 472 = 666.

It is a super-2 number, since 2×4081720937472² (a number of 26 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (4081720937473) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3747688 + ... + 4712600.

Almost surely, 2^{4081720937472} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4081720937472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6470686266408).

4081720937472 is an abundant number, since it is smaller than the sum of its proper divisors (8859651595344).

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

4081720937472 is an equidigital number, since it uses as much as digits as its factorization.

4081720937472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964965 (or 964935 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 54.

The spelling of 4081720937472 in words is "four trillion, eighty-one billion, seven hundred twenty million, nine hundred thirty-seven thousand, four hundred seventy-two".