42621164564 has 12 divisors (see below), whose sum is σ = 81367677888. Its totient is φ = 19373256600.

The previous prime is 42621164563. The next prime is 42621164671. The reversal of 42621164564 is 46546112624.

42621164564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42621164563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 484331372 + ... + 484331459.

It is an arithmetic number, because the mean of its divisors is an integer number (6780639824).

Almost surely, 2^42621164564 is an apocalyptic number.

42621164564 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

42621164564 is a deficient number, since it is larger than the sum of its proper divisors (38746513324).

42621164564 is a wasteful number, since it uses less digits than its factorization.

42621164564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968662846 (or 968662844 counting only the distinct ones).

The product of its digits is 276480, while the sum is 41.

The spelling of 42621164564 in words is "forty-two billion, six hundred twenty-one million, one hundred sixty-four thousand, five hundred sixty-four".