42439972011 has 8 divisors (see below), whose sum is σ = 56629277184. Its totient is φ = 28271990760.

The previous prime is 42439972007. The next prime is 42439972013. The reversal of 42439972011 is 11027993424.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42439972011 - 2² = 42439972007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42439972013) 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 7 ways as a sum of consecutive naturals, for example, 5326335 + ... + 5334296.

It is an arithmetic number, because the mean of its divisors is an integer number (7078659648).

Almost surely, 2^42439972011 is an apocalyptic number.

42439972011 is a deficient number, since it is larger than the sum of its proper divisors (14189305173).

42439972011 is a wasteful number, since it uses less digits than its factorization.

42439972011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10661961.

The product of its (nonzero) digits is 108864, while the sum is 42.

The spelling of 42439972011 in words is "forty-two billion, four hundred thirty-nine million, nine hundred seventy-two thousand, eleven".