8379905814784 has 90 divisors (see below), whose sum is σ = 19513764205390. Its totient is φ = 3591387942912.

The previous prime is 8379905814781. The next prime is 8379905814793. The reversal of 8379905814784 is 4874185099738.

It can be written as a sum of positive squares in only one way, i.e., 7930576912384 + 449328902400 = 2816128^2 + 670320^2 .

It is not an unprimeable number, because it can be changed into a prime (8379905814781) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6202089 + ... + 7431400.

Almost surely, 2^{8379905814784} is an apocalyptic number.

It is an amenable number.

8379905814784 is an abundant number, since it is smaller than the sum of its proper divisors (11133858390606).

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

8379905814784 is an frugal number, since it uses more digits than its factorization.

8379905814784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13633533 (or 13633498 counting only the distinct ones).

The product of its (nonzero) digits is 487710720, while the sum is 73.

The spelling of 8379905814784 in words is "eight trillion, three hundred seventy-nine billion, nine hundred five million, eight hundred fourteen thousand, seven hundred eighty-four".