42445335731568 has 240 divisors, whose sum is σ = 137835170984448. Its totient is φ = 11017362470400.

The previous prime is 42445335731473. The next prime is 42445335731597. The reversal of 42445335731568 is 86513753354424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60349773 + ... + 61049043.

Almost surely, 2^{42445335731568} is an apocalyptic number.

42445335731568 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42445335731568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68917585492224).

42445335731568 is an abundant number, since it is smaller than the sum of its proper divisors (95389835252880).

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

42445335731568 is a wasteful number, since it uses less digits than its factorization.

42445335731568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700804 (or 700787 counting only the distinct ones).

The product of its digits is 145152000, while the sum is 60.

The spelling of 42445335731568 in words is "forty-two trillion, four hundred forty-five billion, three hundred thirty-five million, seven hundred thirty-one thousand, five hundred sixty-eight".