42392866439 has 32 divisors (see below), whose sum is σ = 54367428096. Its totient is φ = 32089979520.

The previous prime is 42392866379. The next prime is 42392866447. The reversal of 42392866439 is 93466829324.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 42392866439 - 2⁸ = 42392866183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42392866339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1849004 + ... + 1871790.

It is an arithmetic number, because the mean of its divisors is an integer number (1698982128).

Almost surely, 2^42392866439 is an apocalyptic number.

42392866439 is a deficient number, since it is larger than the sum of its proper divisors (11974561657).

42392866439 is a wasteful number, since it uses less digits than its factorization.

42392866439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23495.

The product of its digits is 13436928, while the sum is 56.

The spelling of 42392866439 in words is "forty-two billion, three hundred ninety-two million, eight hundred sixty-six thousand, four hundred thirty-nine".