85415469718373 has 2 divisors, whose sum is σ = 85415469718374. Its totient is φ = 85415469718372.

The previous prime is 85415469718367. The next prime is 85415469718463. The reversal of 85415469718373 is 37381796451458.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85157128275844 + 258341442529 = 9228062^2 + 508273^2 .

It is a cyclic number.

It is not a de Polignac number, because 85415469718373 - 2¹⁶ = 85415469652837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85415469718297 and 85415469718306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85415469718573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42707734859186 + 42707734859187.

It is an arithmetic number, because the mean of its divisors is an integer number (42707734859187).

Almost surely, 2^{85415469718373} is an apocalyptic number.

It is an amenable number.

85415469718373 is a deficient number, since it is larger than the sum of its proper divisors (1).

85415469718373 is an equidigital number, since it uses as much as digits as its factorization.

85415469718373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 609638400, while the sum is 71.

The spelling of 85415469718373 in words is "eighty-five trillion, four hundred fifteen billion, four hundred sixty-nine million, seven hundred eighteen thousand, three hundred seventy-three".