855386232469 has 4 divisors (see below), whose sum is σ = 856443571020. Its totient is φ = 854328893920.

The previous prime is 855386232461. The next prime is 855386232473. The reversal of 855386232469 is 964232683558.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 345376009969 + 510010222500 = 587687^2 + 714150^2 .

It is a cyclic number.

It is not a de Polignac number, because 855386232469 - 2³ = 855386232461 is a prime.

It is a super-3 number, since 3×855386232469³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855386232461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 528668062 + ... + 528669679.

It is an arithmetic number, because the mean of its divisors is an integer number (214110892755).

Almost surely, 2^855386232469 is an apocalyptic number.

It is an amenable number.

855386232469 is a deficient number, since it is larger than the sum of its proper divisors (1057338551).

855386232469 is a wasteful number, since it uses less digits than its factorization.

855386232469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057338550.

The product of its digits is 74649600, while the sum is 61.

The spelling of 855386232469 in words is "eight hundred fifty-five billion, three hundred eighty-six million, two hundred thirty-two thousand, four hundred sixty-nine".