86434643469 has 8 divisors (see below), whose sum is σ = 116705004160. Its totient is φ = 56893689216.

The previous prime is 86434643461. The next prime is 86434643473. The reversal of 86434643469 is 96434643468.

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

It is not a de Polignac number, because 86434643469 - 2³ = 86434643461 is a prime.

It is a super-2 number, since 2×86434643469² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86434643461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182351332 + ... + 182351805.

It is an arithmetic number, because the mean of its divisors is an integer number (14588125520).

Almost surely, 2^86434643469 is an apocalyptic number.

It is an amenable number.

86434643469 is a deficient number, since it is larger than the sum of its proper divisors (30270360691).

86434643469 is a wasteful number, since it uses less digits than its factorization.

86434643469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364703219.

The product of its digits is 35831808, while the sum is 57.

Subtracting 86434643469 from its reverse (96434643468), we obtain a palindrome (9999999999).

The spelling of 86434643469 in words is "eighty-six billion, four hundred thirty-four million, six hundred forty-three thousand, four hundred sixty-nine".