42257352609 has 12 divisors (see below), whose sum is σ = 61477525200. Its totient is φ = 27968894424.

The previous prime is 42257352589. The next prime is 42257352611. The reversal of 42257352609 is 90625375224.

42257352609 is a `hidden beast` number, since 4 + 2 + 2 + 5 + 7 + 35 + 2 + 609 = 666.

42257352609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42257352609 - 2⁷ = 42257352481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42257352619) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16888179 + ... + 16890680.

It is an arithmetic number, because the mean of its divisors is an integer number (5123127100).

Almost surely, 2^42257352609 is an apocalyptic number.

It is an amenable number.

42257352609 is a deficient number, since it is larger than the sum of its proper divisors (19220172591).

42257352609 is a wasteful number, since it uses less digits than its factorization.

42257352609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33779004 (or 33779001 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

The spelling of 42257352609 in words is "forty-two billion, two hundred fifty-seven million, three hundred fifty-two thousand, six hundred nine".