42541333633 has 2 divisors, whose sum is σ = 42541333634. Its totient is φ = 42541333632.

The previous prime is 42541333619. The next prime is 42541333643. The reversal of 42541333633 is 33633314524.

42541333633 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., 23211436609 + 19329897024 = 152353^2 + 139032^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42541333633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42541333592 and 42541333601.

It is not a weakly prime, because it can be changed into another prime (42541333643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21270666816 + 21270666817.

It is an arithmetic number, because the mean of its divisors is an integer number (21270666817).

Almost surely, 2^42541333633 is an apocalyptic number.

It is an amenable number.

42541333633 is a deficient number, since it is larger than the sum of its proper divisors (1).

42541333633 is an equidigital number, since it uses as much as digits as its factorization.

42541333633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 37.

The spelling of 42541333633 in words is "forty-two billion, five hundred forty-one million, three hundred thirty-three thousand, six hundred thirty-three".