855590838429 has 8 divisors (see below), whose sum is σ = 1141145747680. Its totient is φ = 570214910736.

The previous prime is 855590838413. The next prime is 855590838439. The reversal of 855590838429 is 924838095558.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 855590838429 - 2⁴ = 855590838413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 855590838429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855590838439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44734234 + ... + 44753355.

It is an arithmetic number, because the mean of its divisors is an integer number (142643218460).

Almost surely, 2^855590838429 is an apocalyptic number.

It is an amenable number.

855590838429 is a deficient number, since it is larger than the sum of its proper divisors (285554909251).

855590838429 is a wasteful number, since it uses less digits than its factorization.

855590838429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89490779.

The product of its (nonzero) digits is 124416000, while the sum is 66.

The spelling of 855590838429 in words is "eight hundred fifty-five billion, five hundred ninety million, eight hundred thirty-eight thousand, four hundred twenty-nine".