85026783743971 has 2 divisors, whose sum is σ = 85026783743972. Its totient is φ = 85026783743970.

The previous prime is 85026783743963. The next prime is 85026783744011. The reversal of 85026783743971 is 17934738762058.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85026783743971 - 2³ = 85026783743963 is a prime.

It is a super-2 number, since 2×85026783743971² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85026783743971.

It is not a weakly prime, because it can be changed into another prime (85026783743911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42513391871985 + 42513391871986.

It is an arithmetic number, because the mean of its divisors is an integer number (42513391871986).

It is a 2-persistent number, because it is pandigital, and so is 2⋅85026783743971 = 170053567487942, but 3⋅85026783743971 = 255080351231913 is not.

Almost surely, 2^{85026783743971} is an apocalyptic number.

85026783743971 is a deficient number, since it is larger than the sum of its proper divisors (1).

85026783743971 is an equidigital number, since it uses as much as digits as its factorization.

85026783743971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 426746880, while the sum is 70.

The spelling of 85026783743971 in words is "eighty-five trillion, twenty-six billion, seven hundred eighty-three million, seven hundred forty-three thousand, nine hundred seventy-one".