42143564546 has 8 divisors (see below), whose sum is σ = 64923869820. Its totient is φ = 20502274608.

The previous prime is 42143564543. The next prime is 42143564549. The reversal of 42143564546 is 64546534124.

It is an interprime number because it is at equal distance from previous prime (42143564543) and next prime (42143564549).

It can be written as a sum of positive squares in 2 ways, for example, as 42104988025 + 38576521 = 205195^2 + 6211^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×42143564546² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42143564497 and 42143564506.

It is not an unprimeable number, because it can be changed into a prime (42143564543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284753741 + ... + 284753888.

Almost surely, 2^42143564546 is an apocalyptic number.

42143564546 is a deficient number, since it is larger than the sum of its proper divisors (22780305274).

42143564546 is a wasteful number, since it uses less digits than its factorization.

42143564546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569507668.

The product of its digits is 1382400, while the sum is 44.

The spelling of 42143564546 in words is "forty-two billion, one hundred forty-three million, five hundred sixty-four thousand, five hundred forty-six".