985642023659 has 8 divisors (see below), whose sum is σ = 1017983702400. Its totient is φ = 953334518400.

The previous prime is 985642023647. The next prime is 985642023697. The reversal of 985642023659 is 956320246589.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-985642023659 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 985642023598 and 985642023607.

It is not an unprimeable number, because it can be changed into a prime (985642023859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8484734 + ... + 8600115.

It is an arithmetic number, because the mean of its divisors is an integer number (127247962800).

Almost surely, 2^985642023659 is an apocalyptic number.

985642023659 is a deficient number, since it is larger than the sum of its proper divisors (32341678741).

985642023659 is a wasteful number, since it uses less digits than its factorization.

985642023659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17086741.

The product of its (nonzero) digits is 27993600, while the sum is 59.

The spelling of 985642023659 in words is "nine hundred eighty-five billion, six hundred forty-two million, twenty-three thousand, six hundred fifty-nine".