405799138336 has 24 divisors (see below), whose sum is σ = 798965290620. Its totient is φ = 202887318528.

The previous prime is 405799138301. The next prime is 405799138357. The reversal of 405799138336 is 633831997504.

It can be written as a sum of positive squares in 2 ways, for example, as 387854928400 + 17944209936 = 622780^2 + 133956^2 .

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 3 ways as a sum of consecutive naturals, for example, 167620 + ... + 916348.

Almost surely, 2^405799138336 is an apocalyptic number.

It is an amenable number.

405799138336 is a deficient number, since it is larger than the sum of its proper divisors (393166152284).

405799138336 is a wasteful number, since it uses less digits than its factorization.

405799138336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765676 (or 765668 counting only the distinct ones).

The product of its (nonzero) digits is 14696640, while the sum is 58.

The spelling of 405799138336 in words is "four hundred five billion, seven hundred ninety-nine million, one hundred thirty-eight thousand, three hundred thirty-six".