85396358637 has 6 divisors (see below), whose sum is σ = 123350295822. Its totient is φ = 56930905752.

The previous prime is 85396358633. The next prime is 85396358659. The reversal of 85396358637 is 73685369358.

85396358637 is a `hidden beast` number, since 8 + 539 + 6 + 35 + 8 + 63 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 85349285316 + 47073321 = 292146^2 + 6861^2 .

It is not a de Polignac number, because 85396358637 - 2² = 85396358633 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85396358633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4744242138 + ... + 4744242155.

It is an arithmetic number, because the mean of its divisors is an integer number (20558382637).

Almost surely, 2^85396358637 is an apocalyptic number.

It is an amenable number.

85396358637 is a deficient number, since it is larger than the sum of its proper divisors (37953937185).

85396358637 is a wasteful number, since it uses less digits than its factorization.

85396358637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9488484299 (or 9488484296 counting only the distinct ones).

The product of its digits is 97977600, while the sum is 63.

The spelling of 85396358637 in words is "eighty-five billion, three hundred ninety-six million, three hundred fifty-eight thousand, six hundred thirty-seven".