42444042533 has 2 divisors, whose sum is σ = 42444042534. Its totient is φ = 42444042532.

The previous prime is 42444042437. The next prime is 42444042539. The reversal of 42444042533 is 33524044424.

42444042533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24926725924 + 17517316609 = 157882^2 + 132353^2 .

It is a cyclic number.

It is not a de Polignac number, because 42444042533 - 2²⁸ = 42175607077 is a prime.

It is a super-2 number, since 2×42444042533² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42444042493 and 42444042502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42444042539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21222021266 + 21222021267.

It is an arithmetic number, because the mean of its divisors is an integer number (21222021267).

Almost surely, 2^42444042533 is an apocalyptic number.

It is an amenable number.

42444042533 is a deficient number, since it is larger than the sum of its proper divisors (1).

42444042533 is an equidigital number, since it uses as much as digits as its factorization.

42444042533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 184320, while the sum is 35.

Adding to 42444042533 its reverse (33524044424), we get a palindrome (75968086957).

The spelling of 42444042533 in words is "forty-two billion, four hundred forty-four million, forty-two thousand, five hundred thirty-three".