4085297378779 has 2 divisors, whose sum is σ = 4085297378780. Its totient is φ = 4085297378778.

The previous prime is 4085297378777. The next prime is 4085297378849. The reversal of 4085297378779 is 9778737925804.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4085297378779 - 2¹ = 4085297378777 is a prime.

Together with 4085297378777, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4085297378777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2042648689389 + 2042648689390.

It is an arithmetic number, because the mean of its divisors is an integer number (2042648689390).

Almost surely, 2^{4085297378779} is an apocalyptic number.

4085297378779 is a deficient number, since it is larger than the sum of its proper divisors (1).

4085297378779 is an equidigital number, since it uses as much as digits as its factorization.

4085297378779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1493614080, while the sum is 76.

The spelling of 4085297378779 in words is "four trillion, eighty-five billion, two hundred ninety-seven million, three hundred seventy-eight thousand, seven hundred seventy-nine".