42143564547 has 16 divisors (see below), whose sum is σ = 71354183680. Its totient is φ = 24082036776.

The previous prime is 42143564543. The next prime is 42143564549. The reversal of 42143564547 is 74546534124.

42143564547 is a `hidden beast` number, since 4 + 2 + 1 + 43 + 5 + 64 + 547 = 666.

It is not a de Polignac number, because 42143564547 - 2² = 42143564543 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42143564543) 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, 111490723 + ... + 111491100.

It is an arithmetic number, because the mean of its divisors is an integer number (4459636480).

Almost surely, 2^42143564547 is an apocalyptic number.

42143564547 is a deficient number, since it is larger than the sum of its proper divisors (29210619133).

42143564547 is a wasteful number, since it uses less digits than its factorization.

42143564547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222981839 (or 222981833 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 45.

The spelling of 42143564547 in words is "forty-two billion, one hundred forty-three million, five hundred sixty-four thousand, five hundred forty-seven".