86427672469 has 4 divisors (see below), whose sum is σ = 86485952896. Its totient is φ = 86369392044.

The previous prime is 86427672449. The next prime is 86427672481. The reversal of 86427672469 is 96427672468.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86427672469 - 2¹³ = 86427664277 is a prime.

It is a super-2 number, since 2×86427672469² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86427672439) 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 3 ways as a sum of consecutive naturals, for example, 29137989 + ... + 29140954.

It is an arithmetic number, because the mean of its divisors is an integer number (21621488224).

Almost surely, 2^86427672469 is an apocalyptic number.

It is an amenable number.

86427672469 is a deficient number, since it is larger than the sum of its proper divisors (58280427).

86427672469 is a wasteful number, since it uses less digits than its factorization.

86427672469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58280426.

The product of its digits is 48771072, while the sum is 61.

Subtracting 86427672469 from its reverse (96427672468), we obtain a palindrome (9999999999).

The spelling of 86427672469 in words is "eighty-six billion, four hundred twenty-seven million, six hundred seventy-two thousand, four hundred sixty-nine".