42112081439 has 8 divisors (see below), whose sum is σ = 42515887920. Its totient is φ = 41708592576.

The previous prime is 42112081391. The next prime is 42112081447. The reversal of 42112081439 is 93418021124.

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

It is a cyclic number.

It is not a de Polignac number, because 42112081439 - 2⁸ = 42112081183 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42112081399 and 42112081408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42112081469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191444 + ... + 347670.

It is an arithmetic number, because the mean of its divisors is an integer number (5314485990).

Almost surely, 2^42112081439 is an apocalyptic number.

42112081439 is a deficient number, since it is larger than the sum of its proper divisors (403806481).

42112081439 is a wasteful number, since it uses less digits than its factorization.

42112081439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158809.

The product of its (nonzero) digits is 13824, while the sum is 35.

The spelling of 42112081439 in words is "forty-two billion, one hundred twelve million, eighty-one thousand, four hundred thirty-nine".