6386042879 has 2 divisors, whose sum is σ = 6386042880. Its totient is φ = 6386042878.

The previous prime is 6386042867. The next prime is 6386042893. The reversal of 6386042879 is 9782406836.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6386042879 - 2¹² = 6386038783 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6386042879.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6386042279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3193021439 + 3193021440.

It is an arithmetic number, because the mean of its divisors is an integer number (3193021440).

Almost surely, 2^6386042879 is an apocalyptic number.

6386042879 is a deficient number, since it is larger than the sum of its proper divisors (1).

6386042879 is an equidigital number, since it uses as much as digits as its factorization.

6386042879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3483648, while the sum is 53.

The square root of 6386042879 is about 79912.7203829278. The cubic root of 6386042879 is about 1855.2849007950.

The spelling of 6386042879 in words is "six billion, three hundred eighty-six million, forty-two thousand, eight hundred seventy-nine".