42471445565 has 16 divisors (see below), whose sum is σ = 51643526400. Its totient is φ = 33525840192.

The previous prime is 42471445543. The next prime is 42471445567. The reversal of 42471445565 is 56554417424.

It is a cyclic number.

It is not a de Polignac number, because 42471445565 - 2⁸ = 42471445309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42471445567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 606299 + ... + 672711.

It is an arithmetic number, because the mean of its divisors is an integer number (3227720400).

Almost surely, 2^42471445565 is an apocalyptic number.

It is an amenable number.

42471445565 is a deficient number, since it is larger than the sum of its proper divisors (9172080835).

42471445565 is a wasteful number, since it uses less digits than its factorization.

42471445565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68116.

The product of its digits is 2688000, while the sum is 47.

The spelling of 42471445565 in words is "forty-two billion, four hundred seventy-one million, four hundred forty-five thousand, five hundred sixty-five".