78804246075823 has 2 divisors, whose sum is σ = 78804246075824. Its totient is φ = 78804246075822.

The previous prime is 78804246075791. The next prime is 78804246075871. The reversal of 78804246075823 is 32857064240887.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78804246075823 - 2⁵ = 78804246075791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78804246015823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39402123037911 + 39402123037912.

It is an arithmetic number, because the mean of its divisors is an integer number (39402123037912).

Almost surely, 2^{78804246075823} is an apocalyptic number.

78804246075823 is a deficient number, since it is larger than the sum of its proper divisors (1).

78804246075823 is an equidigital number, since it uses as much as digits as its factorization.

78804246075823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144506880, while the sum is 64.

The spelling of 78804246075823 in words is "seventy-eight trillion, eight hundred four billion, two hundred forty-six million, seventy-five thousand, eight hundred twenty-three".