42189340811 has 4 divisors (see below), whose sum is σ = 42191496624. Its totient is φ = 42187185000.

The previous prime is 42189340783. The next prime is 42189340819. The reversal of 42189340811 is 11804398124.

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

It is a cyclic number.

It is not a de Polignac number, because 42189340811 - 2⁶ = 42189340747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42189340819) 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, 1048280 + ... + 1087781.

It is an arithmetic number, because the mean of its divisors is an integer number (10547874156).

Almost surely, 2^42189340811 is an apocalyptic number.

42189340811 is a deficient number, since it is larger than the sum of its proper divisors (2155813).

42189340811 is a wasteful number, since it uses less digits than its factorization.

42189340811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2155812.

The product of its (nonzero) digits is 55296, while the sum is 41.

The spelling of 42189340811 in words is "forty-two billion, one hundred eighty-nine million, three hundred forty thousand, eight hundred eleven".