85668689924 has 24 divisors (see below), whose sum is σ = 155133437760. Its totient is φ = 41345680544.

The previous prime is 85668689903. The next prime is 85668689929. The reversal of 85668689924 is 42998686658.

It is not an unprimeable number, because it can be changed into a prime (85668689929) 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, 318347 + ... + 522189.

It is an arithmetic number, because the mean of its divisors is an integer number (6463893240).

Almost surely, 2^85668689924 is an apocalyptic number.

It is an amenable number.

85668689924 is a deficient number, since it is larger than the sum of its proper divisors (69464747836).

85668689924 is a wasteful number, since it uses less digits than its factorization.

85668689924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207499 (or 207497 counting only the distinct ones).

The product of its digits is 358318080, while the sum is 71.

The spelling of 85668689924 in words is "eighty-five billion, six hundred sixty-eight million, six hundred eighty-nine thousand, nine hundred twenty-four".