8264181820444 has 24 divisors (see below), whose sum is σ = 15967159625088. Its totient is φ = 3711187891440.

The previous prime is 8264181820441. The next prime is 8264181820459. The reversal of 8264181820444 is 4440281814628.

It is a happy number.

It is a super-2 number, since 2×8264181820444² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8264181820391 and 8264181820400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8264181820441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1131456072 + ... + 1131463375.

It is an arithmetic number, because the mean of its divisors is an integer number (665298317712).

Almost surely, 2^{8264181820444} is an apocalyptic number.

It is an amenable number.

8264181820444 is a deficient number, since it is larger than the sum of its proper divisors (7702977804644).

8264181820444 is a wasteful number, since it uses less digits than its factorization.

8264181820444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2262919545 (or 2262919543 counting only the distinct ones).

The product of its (nonzero) digits is 3145728, while the sum is 52.

The spelling of 8264181820444 in words is "eight trillion, two hundred sixty-four billion, one hundred eighty-one million, eight hundred twenty thousand, four hundred forty-four".