8189967923344 has 15 divisors (see below), whose sum is σ = 15868085030553. Its totient is φ = 4094978238048.

The previous prime is 8189967923341. The next prime is 8189967923387. The reversal of 8189967923344 is 4433297699818.

The square root of 8189967923344 is 2861812.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 7522622707600 + 667345215744 = 2742740^2 + 816912^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8189967923341) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 11089522 + ... + 11804974.

Almost surely, 2^{8189967923344} is an apocalyptic number.

8189967923344 is the 2861812-nd square number.

It is an amenable number.

8189967923344 is a deficient number, since it is larger than the sum of its proper divisors (7678117107209).

8189967923344 is an frugal number, since it uses more digits than its factorization.

8189967923344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1430914 (or 715455 counting only the distinct ones).

The product of its digits is 564350976, while the sum is 73.

The spelling of 8189967923344 in words is "eight trillion, one hundred eighty-nine billion, nine hundred sixty-seven million, nine hundred twenty-three thousand, three hundred forty-four".