42346643089 has 3 divisors (see below), whose sum is σ = 42346848873. Its totient is φ = 42346437306.

The previous prime is 42346643081. The next prime is 42346643099. The reversal of 42346643089 is 98034664324.

The square root of 42346643089 is 205783.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 42346643089 - 2³ = 42346643081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42346643081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 102892 + ... + 308674.

It is an arithmetic number, because the mean of its divisors is an integer number (14115616291).

Almost surely, 2^42346643089 is an apocalyptic number.

42346643089 is the 205783-rd square number.

42346643089 is the 102892-nd centered octagonal number.

It is an amenable number.

42346643089 is a deficient number, since it is larger than the sum of its proper divisors (205784).

42346643089 is an frugal number, since it uses more digits than its factorization.

42346643089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411566 (or 205783 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 49.

Multiplying 42346643089 by its sum of digits (49), we get a square (2074985511361 = 1440481²).

The spelling of 42346643089 in words is "forty-two billion, three hundred forty-six million, six hundred forty-three thousand, eighty-nine".