12340206637 has 16 divisors (see below), whose sum is σ = 13575146112. Its totient is φ = 11124299520.

The previous prime is 12340206577. The next prime is 12340206649. The reversal of 12340206637 is 73660204321.

It is a cyclic number.

It is not a de Polignac number, because 12340206637 - 2⁷ = 12340206509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12340204637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1552768 + ... + 1560694.

It is an arithmetic number, because the mean of its divisors is an integer number (848446632).

Almost surely, 2^12340206637 is an apocalyptic number.

It is an amenable number.

12340206637 is a deficient number, since it is larger than the sum of its proper divisors (1234939475).

12340206637 is a wasteful number, since it uses less digits than its factorization.

12340206637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9108.

The product of its (nonzero) digits is 36288, while the sum is 34.

The spelling of 12340206637 in words is "twelve billion, three hundred forty million, two hundred six thousand, six hundred thirty-seven".