42564045634 has 16 divisors (see below), whose sum is σ = 69720152256. Its totient is φ = 19327878000.

The previous prime is 42564045611. The next prime is 42564045683. The reversal of 42564045634 is 43654046524.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 948342 + ... + 992209.

It is an arithmetic number, because the mean of its divisors is an integer number (4357509516).

Almost surely, 2^42564045634 is an apocalyptic number.

42564045634 is a deficient number, since it is larger than the sum of its proper divisors (27156106622).

42564045634 is a wasteful number, since it uses less digits than its factorization.

42564045634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1941561.

The product of its (nonzero) digits is 1382400, while the sum is 43.

The spelling of 42564045634 in words is "forty-two billion, five hundred sixty-four million, forty-five thousand, six hundred thirty-four".