42745530618 has 48 divisors (see below), whose sum is σ = 105911245440. Its totient is φ = 12205489248.

The previous prime is 42745530599. The next prime is 42745530631. The reversal of 42745530618 is 81603554724.

42745530618 is a `hidden beast` number, since 4 + 27 + 4 + 5 + 5 + 3 + 0 + 618 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102643 + ... + 309881.

It is an arithmetic number, because the mean of its divisors is an integer number (2206484280).

Almost surely, 2^42745530618 is an apocalyptic number.

42745530618 is an abundant number, since it is smaller than the sum of its proper divisors (63165714822).

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

42745530618 is a wasteful number, since it uses less digits than its factorization.

42745530618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208891 (or 208888 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 42745530618 in words is "forty-two billion, seven hundred forty-five million, five hundred thirty thousand, six hundred eighteen".