85336437671 has 2 divisors, whose sum is σ = 85336437672. Its totient is φ = 85336437670.

The previous prime is 85336437653. The next prime is 85336437709. The reversal of 85336437671 is 17673463358.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85336437671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85336437271) 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, 42668218835 + 42668218836.

It is an arithmetic number, because the mean of its divisors is an integer number (42668218836).

Almost surely, 2^85336437671 is an apocalyptic number.

85336437671 is a deficient number, since it is larger than the sum of its proper divisors (1).

85336437671 is an equidigital number, since it uses as much as digits as its factorization.

85336437671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7620480, while the sum is 53.

The spelling of 85336437671 in words is "eighty-five billion, three hundred thirty-six million, four hundred thirty-seven thousand, six hundred seventy-one".