13506123859 has 2 divisors, whose sum is σ = 13506123860. Its totient is φ = 13506123858.

The previous prime is 13506123853. The next prime is 13506123863. The reversal of 13506123859 is 95832160531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13506123859 - 2²⁵ = 13472569427 is a prime.

It is not a weakly prime, because it can be changed into another prime (13506123853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6753061929 + 6753061930.

It is an arithmetic number, because the mean of its divisors is an integer number (6753061930).

Almost surely, 2^13506123859 is an apocalyptic number.

13506123859 is a deficient number, since it is larger than the sum of its proper divisors (1).

13506123859 is an equidigital number, since it uses as much as digits as its factorization.

13506123859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 13506123859 in words is "thirteen billion, five hundred six million, one hundred twenty-three thousand, eight hundred fifty-nine".