42143454616 has 8 divisors (see below), whose sum is σ = 79018977420. Its totient is φ = 21071727304.

The previous prime is 42143454611. The next prime is 42143454671. The reversal of 42143454616 is 61645434124.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42143454611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2633965906 + ... + 2633965921.

Almost surely, 2^42143454616 is an apocalyptic number.

It is an amenable number.

42143454616 is a deficient number, since it is larger than the sum of its proper divisors (36875522804).

42143454616 is a wasteful number, since it uses less digits than its factorization.

42143454616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5267931833 (or 5267931829 counting only the distinct ones).

The product of its digits is 276480, while the sum is 40.

The spelling of 42143454616 in words is "forty-two billion, one hundred forty-three million, four hundred fifty-four thousand, six hundred sixteen".