9942305605 has 4 divisors (see below), whose sum is σ = 11930766732. Its totient is φ = 7953844480.

The previous prime is 9942305603. The next prime is 9942305623. The reversal of 9942305605 is 5065032499.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3206164129 + 6736141476 = 56623^2 + 82074^2 .

It is not a de Polignac number, because 9942305605 - 2¹ = 9942305603 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9942305603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 994230556 + ... + 994230565.

It is an arithmetic number, because the mean of its divisors is an integer number (2982691683).

Almost surely, 2^9942305605 is an apocalyptic number.

It is an amenable number.

9942305605 is a deficient number, since it is larger than the sum of its proper divisors (1988461127).

9942305605 is a wasteful number, since it uses less digits than its factorization.

9942305605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988461126.

The product of its (nonzero) digits is 291600, while the sum is 43.

The square root of 9942305605 is about 99711.1107399772. The cubic root of 9942305605 is about 2150.2834026993.

The spelling of 9942305605 in words is "nine billion, nine hundred forty-two million, three hundred five thousand, six hundred five".