42444539564831 has 8 divisors (see below), whose sum is σ = 42957418848624. Its totient is φ = 41931695978560.

The previous prime is 42444539564813. The next prime is 42444539564839. The reversal of 42444539564831 is 13846593544424.

42444539564831 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.

It is a cyclic number.

It is not a de Polignac number, because 42444539564831 - 2²² = 42444535370527 is a prime.

It is a super-2 number, since 2×42444539564831² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42444539564839) 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 7 ways as a sum of consecutive naturals, for example, 6528140 + ... + 11291841.

It is an arithmetic number, because the mean of its divisors is an integer number (5369677356078).

Almost surely, 2^{42444539564831} is an apocalyptic number.

42444539564831 is a deficient number, since it is larger than the sum of its proper divisors (512879283793).

42444539564831 is a wasteful number, since it uses less digits than its factorization.

42444539564831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17848761.

The product of its digits is 199065600, while the sum is 62.

The spelling of 42444539564831 in words is "forty-two trillion, four hundred forty-four billion, five hundred thirty-nine million, five hundred sixty-four thousand, eight hundred thirty-one".