12840816137 has 8 divisors (see below), whose sum is σ = 13057653600. Its totient is φ = 12625591264.

The previous prime is 12840816101. The next prime is 12840816161. The reversal of 12840816137 is 73161804821.

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

It is not a de Polignac number, because 12840816137 - 2⁸ = 12840815881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12840816094 and 12840816103.

It is not an unprimeable number, because it can be changed into a prime (12840816337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387083 + ... + 418944.

It is an arithmetic number, because the mean of its divisors is an integer number (1632206700).

Almost surely, 2^12840816137 is an apocalyptic number.

It is an amenable number.

12840816137 is a deficient number, since it is larger than the sum of its proper divisors (216837463).

12840816137 is an equidigital number, since it uses as much as digits as its factorization.

12840816137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806295.

The product of its (nonzero) digits is 64512, while the sum is 41.

The spelling of 12840816137 in words is "twelve billion, eight hundred forty million, eight hundred sixteen thousand, one hundred thirty-seven".