42642529133 has 2 divisors, whose sum is σ = 42642529134. Its totient is φ = 42642529132.

The previous prime is 42642529121. The next prime is 42642529157. The reversal of 42642529133 is 33192524624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34895360809 + 7747168324 = 186803^2 + 88018^2 .

It is a cyclic number.

It is not a de Polignac number, because 42642529133 - 2⁴ = 42642529117 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42642529733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21321264566 + 21321264567.

It is an arithmetic number, because the mean of its divisors is an integer number (21321264567).

Almost surely, 2^42642529133 is an apocalyptic number.

It is an amenable number.

42642529133 is a deficient number, since it is larger than the sum of its proper divisors (1).

42642529133 is an equidigital number, since it uses as much as digits as its factorization.

42642529133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 41.

The spelling of 42642529133 in words is "forty-two billion, six hundred forty-two million, five hundred twenty-nine thousand, one hundred thirty-three".