1805426380368 has 120 divisors (see below), whose sum is σ = 5727741699680. Its totient is φ = 526278124800.

The previous prime is 1805426380357. The next prime is 1805426380403. The reversal of 1805426380368 is 8630836245081.

1805426380368 is a `hidden beast` number, since 1 + 8 + 0 + 542 + 6 + 38 + 0 + 3 + 68 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25344358 + ... + 25415493.

Almost surely, 2^{1805426380368} is an apocalyptic number.

1805426380368 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1805426380368 is an abundant number, since it is smaller than the sum of its proper divisors (3922315319312).

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

1805426380368 is a wasteful number, since it uses less digits than its factorization.

1805426380368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50759897 (or 50759888 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 54.

The spelling of 1805426380368 in words is "one trillion, eight hundred five billion, four hundred twenty-six million, three hundred eighty thousand, three hundred sixty-eight".