8405807033394 has 20 divisors (see below), whose sum is σ = 18835234278894. Its totient is φ = 2801935677744.

The previous prime is 8405807033357. The next prime is 8405807033401. The reversal of 8405807033394 is 4933307085048.

8405807033394 is a `hidden beast` number, since 8 + 405 + 80 + 70 + 3 + 3 + 3 + 94 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8390946204369 + 14860829025 = 2896713^2 + 121905^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 8405807033394.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 25943848707 + ... + 25943849030.

Almost surely, 2^{8405807033394} is an apocalyptic number.

8405807033394 is an abundant number, since it is smaller than the sum of its proper divisors (10429427245500).

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

8405807033394 is a wasteful number, since it uses less digits than its factorization.

8405807033394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51887697751 (or 51887697742 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 8405807033394 in words is "eight trillion, four hundred five billion, eight hundred seven million, thirty-three thousand, three hundred ninety-four".