1808419358405 has 32 divisors (see below), whose sum is σ = 2369698329600. Its totient is φ = 1313929889280.

The previous prime is 1808419358353. The next prime is 1808419358443. The reversal of 1808419358405 is 5048539148081.

It is not a de Polignac number, because 1808419358405 - 2⁶ = 1808419358341 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 384522284 + ... + 384526986.

It is an arithmetic number, because the mean of its divisors is an integer number (74053072800).

Almost surely, 2^{1808419358405} is an apocalyptic number.

It is an amenable number.

1808419358405 is a deficient number, since it is larger than the sum of its proper divisors (561278971195).

1808419358405 is a wasteful number, since it uses less digits than its factorization.

1808419358405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10061.

The product of its (nonzero) digits is 5529600, while the sum is 56.

The spelling of 1808419358405 in words is "one trillion, eight hundred eight billion, four hundred nineteen million, three hundred fifty-eight thousand, four hundred five".