85137002471 has 2 divisors, whose sum is σ = 85137002472. Its totient is φ = 85137002470.

The previous prime is 85137002449. The next prime is 85137002543. The reversal of 85137002471 is 17420073158.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85137002471 - 2⁶ = 85137002407 is a prime.

It is a super-4 number, since 4×85137002471⁴ (a number of 45 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85137002441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42568501235 + 42568501236.

It is an arithmetic number, because the mean of its divisors is an integer number (42568501236).

Almost surely, 2^85137002471 is an apocalyptic number.

85137002471 is a deficient number, since it is larger than the sum of its proper divisors (1).

85137002471 is an equidigital number, since it uses as much as digits as its factorization.

85137002471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47040, while the sum is 38.

The spelling of 85137002471 in words is "eighty-five billion, one hundred thirty-seven million, two thousand, four hundred seventy-one".