4081489099776 has 264 divisors, whose sum is σ = 12898570548864. Its totient is φ = 1232776765440.

The previous prime is 4081489099771. The next prime is 4081489099813. The reversal of 4081489099776 is 6779909841804.

4081489099776 is a `hidden beast` number, since 408 + 1 + 48 + 90 + 9 + 97 + 7 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (264).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4081489099771) 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, 31056861 + ... + 31188003.

It is an arithmetic number, because the mean of its divisors is an integer number (48858221776).

Almost surely, 2^{4081489099776} 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 4081489099776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6449285274432).

4081489099776 is an abundant number, since it is smaller than the sum of its proper divisors (8817081449088).

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

4081489099776 is a wasteful number, since it uses less digits than its factorization.

4081489099776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131487 (or 131466 counting only the distinct ones).

The product of its (nonzero) digits is 219469824, while the sum is 72.

The spelling of 4081489099776 in words is "four trillion, eighty-one billion, four hundred eighty-nine million, ninety-nine thousand, seven hundred seventy-six".