85508207928019 has 2 divisors, whose sum is σ = 85508207928020. Its totient is φ = 85508207928018.

The previous prime is 85508207927953. The next prime is 85508207928071. The reversal of 85508207928019 is 91082970280558.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85508207928019 is a prime.

It is a super-2 number, since 2×85508207928019² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (85508207928719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42754103964009 + 42754103964010.

It is an arithmetic number, because the mean of its divisors is an integer number (42754103964010).

Almost surely, 2^{85508207928019} is an apocalyptic number.

85508207928019 is a deficient number, since it is larger than the sum of its proper divisors (1).

85508207928019 is an equidigital number, since it uses as much as digits as its factorization.

85508207928019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29030400, while the sum is 64.

The spelling of 85508207928019 in words is "eighty-five trillion, five hundred eight billion, two hundred seven million, nine hundred twenty-eight thousand, nineteen".