42394768533 has 24 divisors (see below), whose sum is σ = 69418338080. Its totient is φ = 24715977120.

The previous prime is 42394768523. The next prime is 42394768543. The reversal of 42394768533 is 33586749324.

42394768533 is a `hidden beast` number, since 4 + 2 + 3 + 9 + 47 + 68 + 533 = 666.

It is an interprime number because it is at equal distance from previous prime (42394768523) and next prime (42394768543).

It is not a de Polignac number, because 42394768533 - 2⁴ = 42394768517 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 42394768533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42394768523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9533263 + ... + 9537708.

Almost surely, 2^42394768533 is an apocalyptic number.

It is an amenable number.

42394768533 is a deficient number, since it is larger than the sum of its proper divisors (27023569547).

42394768533 is a wasteful number, since it uses less digits than its factorization.

42394768533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19071009 (or 19071006 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 54.

The spelling of 42394768533 in words is "forty-two billion, three hundred ninety-four million, seven hundred sixty-eight thousand, five hundred thirty-three".