1768405230378 has 20 divisors (see below), whose sum is σ = 3962537646210. Its totient is φ = 589468410072.

The previous prime is 1768405230337. The next prime is 1768405230401. The reversal of 1768405230378 is 8730325048671.

It is a happy number.

1768405230378 is a `hidden beast` number, since 1 + 7 + 6 + 8 + 40 + 523 + 0 + 3 + 78 = 666.

It can be written as a sum of positive squares in only one way, i.e., 957546402849 + 810858827529 = 978543^2 + 900477^2 .

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

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, 5458040673 + ... + 5458040996.

Almost surely, 2^{1768405230378} is an apocalyptic number.

1768405230378 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1768405230378 is an abundant number, since it is smaller than the sum of its proper divisors (2194132415832).

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

1768405230378 is a wasteful number, since it uses less digits than its factorization.

1768405230378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10916081683 (or 10916081674 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 54.

The spelling of 1768405230378 in words is "one trillion, seven hundred sixty-eight billion, four hundred five million, two hundred thirty thousand, three hundred seventy-eight".