12617015843 has 2 divisors, whose sum is σ = 12617015844. Its totient is φ = 12617015842.

The previous prime is 12617015767. The next prime is 12617015921. The reversal of 12617015843 is 34851071621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12617015843 - 2¹⁰ = 12617014819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12617015797 and 12617015806.

It is not a weakly prime, because it can be changed into another prime (12617015143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6308507921 + 6308507922.

It is an arithmetic number, because the mean of its divisors is an integer number (6308507922).

Almost surely, 2^12617015843 is an apocalyptic number.

12617015843 is a deficient number, since it is larger than the sum of its proper divisors (1).

12617015843 is an equidigital number, since it uses as much as digits as its factorization.

12617015843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 38.

The spelling of 12617015843 in words is "twelve billion, six hundred seventeen million, fifteen thousand, eight hundred forty-three".