9942422085 has 64 divisors (see below), whose sum is σ = 17867520000. Its totient is φ = 5245309440.

The previous prime is 9942422081. The next prime is 9942422093. The reversal of 9942422085 is 5802242499.

It is not a de Polignac number, because 9942422085 - 2² = 9942422081 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 9942422085.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9942422081) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5651436 + ... + 5653194.

It is an arithmetic number, because the mean of its divisors is an integer number (279180000).

Almost surely, 2^9942422085 is an apocalyptic number.

It is an amenable number.

9942422085 is a deficient number, since it is larger than the sum of its proper divisors (7925097915).

9942422085 is a wasteful number, since it uses less digits than its factorization.

9942422085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2203 (or 2197 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 9942422085 is about 99711.6948256322. The cubic root of 9942422085 is about 2150.2917999478.

The spelling of 9942422085 in words is "nine billion, nine hundred forty-two million, four hundred twenty-two thousand, eighty-five".