85437653587 has 16 divisors (see below), whose sum is σ = 100653960960. Its totient is φ = 71496180000.

The previous prime is 85437653551. The next prime is 85437653621. The reversal of 85437653587 is 78535673458.

It is a cyclic number.

It is not a de Polignac number, because 85437653587 - 2¹¹ = 85437651539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85437654587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 780789 + ... + 883462.

It is an arithmetic number, because the mean of its divisors is an integer number (6290872560).

Almost surely, 2^85437653587 is an apocalyptic number.

85437653587 is a deficient number, since it is larger than the sum of its proper divisors (15216307373).

85437653587 is a wasteful number, since it uses less digits than its factorization.

85437653587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1664634.

The product of its digits is 84672000, while the sum is 61.

The spelling of 85437653587 in words is "eighty-five billion, four hundred thirty-seven million, six hundred fifty-three thousand, five hundred eighty-seven".