6156559879 has 2 divisors, whose sum is σ = 6156559880. Its totient is φ = 6156559878.

The previous prime is 6156559859. The next prime is 6156559897. The reversal of 6156559879 is 9789556516.

Together with next prime (6156559897) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6156559879 - 2⁵ = 6156559847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6156559859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3078279939 + 3078279940.

It is an arithmetic number, because the mean of its divisors is an integer number (3078279940).

Almost surely, 2^6156559879 is an apocalyptic number.

6156559879 is a deficient number, since it is larger than the sum of its proper divisors (1).

6156559879 is an equidigital number, since it uses as much as digits as its factorization.

6156559879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20412000, while the sum is 61.

The square root of 6156559879 is about 78463.7488207134. The cubic root of 6156559879 is about 1832.7899830882.

The spelling of 6156559879 in words is "six billion, one hundred fifty-six million, five hundred fifty-nine thousand, eight hundred seventy-nine".