8163751843984 has 45 divisors (see below), whose sum is σ = 17386191733561. Its totient is φ = 3710739148160.

The previous prime is 8163751843943. The next prime is 8163751844029. The reversal of 8163751843984 is 4893481573618.

The square root of 8163751843984 is 2857228.

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., 7219216659600 + 944535184384 = 2686860^2 + 971872^2 .

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, 125685564 + ... + 125750500.

Almost surely, 2^{8163751843984} is an apocalyptic number.

8163751843984 is the 2857228-th square number.

It is an amenable number.

8163751843984 is an abundant number, since it is smaller than the sum of its proper divisors (9222439889577).

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

8163751843984 is an frugal number, since it uses more digits than its factorization.

8163751843984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129904 (or 64950 counting only the distinct ones).

The product of its digits is 139345920, while the sum is 67.

The spelling of 8163751843984 in words is "eight trillion, one hundred sixty-three billion, seven hundred fifty-one million, eight hundred forty-three thousand, nine hundred eighty-four".