12686343498 has 32 divisors (see below), whose sum is σ = 28293683520. Its totient is φ = 4213509840.

The previous prime is 12686343493. The next prime is 12686343511. The reversal of 12686343498 is 89434368621.

12686343498 is a `hidden beast` number, since 1 + 2 + 68 + 63 + 434 + 98 = 666.

12686343498 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12686343498² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (12686343493) 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 15 ways as a sum of consecutive naturals, for example, 409108 + ... + 439023.

It is an arithmetic number, because the mean of its divisors is an integer number (884177610).

Almost surely, 2^12686343498 is an apocalyptic number.

12686343498 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12686343498 is an abundant number, since it is smaller than the sum of its proper divisors (15607340022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12686343498 is a wasteful number, since it uses less digits than its factorization.

12686343498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848419 (or 848413 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 54.

The spelling of 12686343498 in words is "twelve billion, six hundred eighty-six million, three hundred forty-three thousand, four hundred ninety-eight".