42333333561 has 8 divisors (see below), whose sum is σ = 62716049760. Its totient is φ = 28222222356.

The previous prime is 42333333557. The next prime is 42333333569. The reversal of 42333333561 is 16533333324.

42333333561 is a `hidden beast` number, since 4 + 2 + 33 + 33 + 33 + 561 = 666.

42333333561 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 42333333561 - 2² = 42333333557 is a prime.

It is a super-2 number, since 2×42333333561² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42333333569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 783950595 + ... + 783950648.

It is an arithmetic number, because the mean of its divisors is an integer number (7839506220).

Almost surely, 2^42333333561 is an apocalyptic number.

It is an amenable number.

42333333561 is a deficient number, since it is larger than the sum of its proper divisors (20382716199).

42333333561 is a wasteful number, since it uses less digits than its factorization.

42333333561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1567901252 (or 1567901246 counting only the distinct ones).

The product of its digits is 174960, while the sum is 36.

Adding to 42333333561 its reverse (16533333324), we get a palindrome (58866666885).

The spelling of 42333333561 in words is "forty-two billion, three hundred thirty-three million, three hundred thirty-three thousand, five hundred sixty-one".