42516489656 has 8 divisors (see below), whose sum is σ = 79718418120. Its totient is φ = 21258244824.

The previous prime is 42516489647. The next prime is 42516489689. The reversal of 42516489656 is 65698461524.

42516489656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2657280596 + ... + 2657280611.

It is an arithmetic number, because the mean of its divisors is an integer number (9964802265).

Almost surely, 2^42516489656 is an apocalyptic number.

It is an amenable number.

42516489656 is a deficient number, since it is larger than the sum of its proper divisors (37201928464).

42516489656 is a wasteful number, since it uses less digits than its factorization.

42516489656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5314561213 (or 5314561209 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 56.

The spelling of 42516489656 in words is "forty-two billion, five hundred sixteen million, four hundred eighty-nine thousand, six hundred fifty-six".