67856393441394 has 48 divisors (see below), whose sum is σ = 147192492807360. Its totient is φ = 22592598323040.

The previous prime is 67856393441393. The next prime is 67856393441401. The reversal of 67856393441394 is 49314439365876.

67856393441394 is a `hidden beast` number, since 6 + 7 + 8 + 5 + 6 + 3 + 93 + 441 + 3 + 94 = 666.

It is not an unprimeable number, because it can be changed into a prime (67856393441393) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 912244084 + ... + 912318464.

It is an arithmetic number, because the mean of its divisors is an integer number (3066510266820).

Almost surely, 2^{67856393441394} is an apocalyptic number.

67856393441394 is an abundant number, since it is smaller than the sum of its proper divisors (79336099365966).

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

67856393441394 is a wasteful number, since it uses less digits than its factorization.

67856393441394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132415 (or 132412 counting only the distinct ones).

The product of its digits is 1410877440, while the sum is 72.

The spelling of 67856393441394 in words is "sixty-seven trillion, eight hundred fifty-six billion, three hundred ninety-three million, four hundred forty-one thousand, three hundred ninety-four".