85345053637 has 2 divisors, whose sum is σ = 85345053638. Its totient is φ = 85345053636.

The previous prime is 85345053623. The next prime is 85345053653. The reversal of 85345053637 is 73635054358.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80516332516 + 4828721121 = 283754^2 + 69489^2 .

It is a cyclic number.

It is not a de Polignac number, because 85345053637 - 2¹⁵ = 85345020869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85345053617) 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, 42672526818 + 42672526819.

It is an arithmetic number, because the mean of its divisors is an integer number (42672526819).

Almost surely, 2^85345053637 is an apocalyptic number.

It is an amenable number.

85345053637 is a deficient number, since it is larger than the sum of its proper divisors (1).

85345053637 is an equidigital number, since it uses as much as digits as its factorization.

85345053637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536000, while the sum is 49.

The spelling of 85345053637 in words is "eighty-five billion, three hundred forty-five million, fifty-three thousand, six hundred thirty-seven".