12343657698 has 24 divisors (see below), whose sum is σ = 26746645068. Its totient is φ = 4114236672.

The previous prime is 12343657693. The next prime is 12343657741. The reversal of 12343657698 is 89675634321.

12343657698 is a `hidden beast` number, since 1 + 2 + 34 + 36 + 576 + 9 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12280407489 + 63250209 = 110817^2 + 7953^2 .

It is not an unprimeable number, because it can be changed into a prime (12343657693) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 410886 + ... + 439902.

Almost surely, 2^12343657698 is an apocalyptic number.

12343657698 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12343657698 is an abundant number, since it is smaller than the sum of its proper divisors (14402987370).

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

12343657698 is a wasteful number, since it uses less digits than its factorization.

12343657698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52658 (or 52655 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The spelling of 12343657698 in words is "twelve billion, three hundred forty-three million, six hundred fifty-seven thousand, six hundred ninety-eight".