42439309734 has 8 divisors (see below), whose sum is σ = 84878619480. Its totient is φ = 14146436576.

The previous prime is 42439309723. The next prime is 42439309823. The reversal of 42439309734 is 43790393424.

42439309734 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

42439309734 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3536609139 + ... + 3536609150.

It is an arithmetic number, because the mean of its divisors is an integer number (10609827435).

Almost surely, 2^42439309734 is an apocalyptic number.

42439309734 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42439309734 is a wasteful number, since it uses less digits than its factorization.

42439309734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7073218294.

The product of its (nonzero) digits is 1959552, while the sum is 48.

The spelling of 42439309734 in words is "forty-two billion, four hundred thirty-nine million, three hundred nine thousand, seven hundred thirty-four".