7857146865079 has 2 divisors, whose sum is σ = 7857146865080. Its totient is φ = 7857146865078.

The previous prime is 7857146865023. The next prime is 7857146865107. The reversal of 7857146865079 is 9705686417587.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7857146865079 - 2¹⁷ = 7857146734007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7857146865679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3928573432539 + 3928573432540.

It is an arithmetic number, because the mean of its divisors is an integer number (3928573432540).

Almost surely, 2^{7857146865079} is an apocalyptic number.

7857146865079 is a deficient number, since it is larger than the sum of its proper divisors (1).

7857146865079 is an equidigital number, since it uses as much as digits as its factorization.

7857146865079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 711244800, while the sum is 73.

The spelling of 7857146865079 in words is "seven trillion, eight hundred fifty-seven billion, one hundred forty-six million, eight hundred sixty-five thousand, seventy-nine".