85987916737 has 4 divisors (see below), whose sum is σ = 85991755696. Its totient is φ = 85984077780.

The previous prime is 85987916669. The next prime is 85987916743. The reversal of 85987916737 is 73761978958.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85987916737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85987916237) 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 3 ways as a sum of consecutive naturals, for example, 1885683 + ... + 1930744.

It is an arithmetic number, because the mean of its divisors is an integer number (21497938924).

Almost surely, 2^85987916737 is an apocalyptic number.

It is an amenable number.

85987916737 is a deficient number, since it is larger than the sum of its proper divisors (3838959).

85987916737 is a wasteful number, since it uses less digits than its factorization.

85987916737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3838958.

The product of its digits is 160030080, while the sum is 70.

The spelling of 85987916737 in words is "eighty-five billion, nine hundred eighty-seven million, nine hundred sixteen thousand, seven hundred thirty-seven".