42120132044077 has 2 divisors, whose sum is σ = 42120132044078. Its totient is φ = 42120132044076.

The previous prime is 42120132044071. The next prime is 42120132044129. The reversal of 42120132044077 is 77044023102124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22995419985316 + 19124712058761 = 4795354^2 + 4373181^2 .

It is a cyclic number.

It is not a de Polignac number, because 42120132044077 - 2¹¹ = 42120132042029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42120132044071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21060066022038 + 21060066022039.

It is an arithmetic number, because the mean of its divisors is an integer number (21060066022039).

Almost surely, 2^{42120132044077} is an apocalyptic number.

It is an amenable number.

42120132044077 is a deficient number, since it is larger than the sum of its proper divisors (1).

42120132044077 is an equidigital number, since it uses as much as digits as its factorization.

42120132044077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75264, while the sum is 37.

The spelling of 42120132044077 in words is "forty-two trillion, one hundred twenty billion, one hundred thirty-two million, forty-four thousand, seventy-seven".