42081439017 has 4 divisors (see below), whose sum is σ = 56108585360. Its totient is φ = 28054292676.

The previous prime is 42081439013. The next prime is 42081439021. The reversal of 42081439017 is 71093418024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (42081439013) and next prime (42081439021).

It is not a de Polignac number, because 42081439017 - 2² = 42081439013 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42081439013) 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, 7013573167 + ... + 7013573172.

It is an arithmetic number, because the mean of its divisors is an integer number (14027146340).

Almost surely, 2^42081439017 is an apocalyptic number.

It is an amenable number.

42081439017 is a deficient number, since it is larger than the sum of its proper divisors (14027146343).

42081439017 is a wasteful number, since it uses less digits than its factorization.

42081439017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14027146342.

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 42081439017 in words is "forty-two billion, eighty-one million, four hundred thirty-nine thousand, seventeen".