78520320883 has 2 divisors, whose sum is σ = 78520320884. Its totient is φ = 78520320882.

The previous prime is 78520320871. The next prime is 78520320937. The reversal of 78520320883 is 38802302587.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78520320883 is a prime.

It is not a weakly prime, because it can be changed into another prime (78520320833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39260160441 + 39260160442.

It is an arithmetic number, because the mean of its divisors is an integer number (39260160442).

Almost surely, 2^78520320883 is an apocalyptic number.

78520320883 is a deficient number, since it is larger than the sum of its proper divisors (1).

78520320883 is an equidigital number, since it uses as much as digits as its factorization.

78520320883 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 78520320883 in words is "seventy-eight billion, five hundred twenty million, three hundred twenty thousand, eight hundred eighty-three".