8399053164544 has 117 divisors (see below), whose sum is σ = 19541289726297. Its totient is φ = 3599037775872.

The previous prime is 8399053164521. The next prime is 8399053164559. The reversal of 8399053164544 is 4454613509938.

It is a happy number.

The square root of 8399053164544 is 2898112.

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., 433111404544 + 7965941760000 = 658112^2 + 2822400^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1298350942 + ... + 1298357410.

Almost surely, 2^{8399053164544} is an apocalyptic number.

8399053164544 is the 2898112-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8399053164544

8399053164544 is an abundant number, since it is smaller than the sum of its proper divisors (11142236561753).

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

8399053164544 is an frugal number, since it uses more digits than its factorization.

8399053164544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12976 (or 6478 counting only the distinct ones).

The product of its (nonzero) digits is 55987200, while the sum is 61.

The spelling of 8399053164544 in words is "eight trillion, three hundred ninety-nine billion, fifty-three million, one hundred sixty-four thousand, five hundred forty-four".